Yingshu Li
Professor

Department of Computer Science

College of Arts & Sciences

Georgia State University

25 Park Place, Suite 717

Atlanta, GA 30303, USA

Fax: 404-413-5717

EMAIL: yili@gsu.edu


Selected Publications

Google Scholar Citations

Complete Publications

Journal Articles:

  1. [TCBB] H. Lee, M. Kang, D. Kim, D. Seo and Y. Li, Epidemic Vulnerability Index for Effective Vaccine Distribution against Pandemic, Accepted by IEEE/ACM Transactions on Computational Biology and Bioinformatics, 2022. DOI: 10.1109/TCBB.2022.3198365 [PDF]
  2. [IOT-J] C. Wang, Z. Cai, and Y. Li, Sustainable Blockchain-based Digital Twin Management Architecture for IoT Devices, Accepted by IEEE Internet of Things Journal, 2021. DOI: 10.1109/JIOT.2022.3153653 [PDF]
  3. [IOT-J] Z. Cai, Q. Chen, T. Shi, T. Zhu, K. Chen, and Y. Li, Battery-Free Wireless Sensor Networks: A Comprehensive Survey, IEEE Internet of Things Journal, 10(6):5543-5570, 2023. DOI: 10.1109/JIOT.2022.3222386 [PDF]
  4. [IOT-J] C. Wang and Y. Li, Digital Twin Aided Product Design Framework For IoT Platforms, IEEE Internet of Things Journal, 9(12):9290-9300, 2022. DOI: 10.1109/JIOT.2021.3100796 [PDF]
  5. [TMC] T. Zhu, J. Li, H. Gao, and Y. Li, Data Aggregation Scheduling in Battery-Free Wireless Sensor Networks, IEEE Transactions on Mobile Computing, 21(6):1972-1984, 2022. DOI: 10.1109/TMC.2020.3035671 [PDF]
  6. [TOSN] T. Zhu, J. Li, H. Gao, and Y. Li, Latency-efficient Data Collection Scheduling in Battery-free Wireless Sensor Networks, ACM Transactions on Sensor Networks, 16(3):25:1-25:21, 2020. DOI: 10.1145/3390956 [PDF]
  7. [WCMC] M. Siddula, Y. Li, X. Cheng, Z. Tian, and Z. Cai, Privacy-Enhancing Preferential LBS Query for Mobile Social Network Users, Wireless Communications and Mobile Computing, 8892321:1-8892321:13, 2020. DOI: 10.1155/2020/8892321 [PDF]
  8. [IOT-J] T. Liu, Y. Wang, Y. Li, X. Tong, L. Qi, and N. Jiang, Privacy Protection based on Stream Cipher for Spatio-temporal Data in IoT, IEEE Internet of Things Journal, 7(9):7928-7940, 2020. DOI: 10.1109/JIOT.2020.2990428 [PDF]
  9. [ACCESS] A. Sai and Y. Li, A Survey on Privacy Issues in Mobile Social Networks, IEEE Access, 8:130906-130921, 2020. DOI: 10.1109/ACCESS.2020.3009691 [PDF]
  10. [TCBB] Z. He, J. Yu, J. Li, Q. Han, G. Luo, and Y. Li, Inference Attacks and Controls on Genotypes and Phenotypes for Individual Genomic Data, IEEE/ACM Transactions on Computational Biology and Bioinformatics, 17(3):930-937, 2020. DOI: 10.1109/TCBB.2018.2810180 [PDF]
  11. [TMC] Q. Chen, H. Gao, L. Cheng, and Y. Li, Label Coloring Based Beaconing Schedule in Duty-Cycled Multihop Wireless Networks, IEEE Transactions on Mobile Computing, 19(5):1123-1137, 2020. DOI: 10.1109/TMC.2019.2907956 [PDF]
  12. [TII] S. Zhu, Z. Cai, H. Hu, Y. Li, and W. Li, zkCrowd: A Hybrid Blockchain-based Crowdsourcing Platform, IEEE Transactions on Industrial Informatics, 16(6):4196-4205, 2020. DOI: 10.1109/TII.2019.2941735 [PDF]
  13. [TOSN] T. Zhu, J. Li, H. Gao, and Y. Li, Broadcast Scheduling in Battery-Free Wireless Sensor Networks, ACM Transactions on Sensor Networks, 15(4):No.49, 2019. DOI: 10.1145/3356472, 2019. [PDF]
  14. [TCS] D. Miao, Z. Cai, J. Yu, and Y. Li, Triangle Edge Deletion on Planar Glasses-Free RGB-Digraphs, Theoretical Computer Science, 788:2-11, 2019. DOI: 10.1016/j.tcs.2018.10.034 [PDF]
  15. [TCSS] M. Siddula, Y. Li, X. Cheng, Z. Tian, and Z. Cai, Anonymization in Online Social Networks based on Enhanced Equi-cardinal Clustering, IEEE Transactions on Computational Social Systems, 6(4):809-820, 2019. DOI: 10.1109/TCss.2019.2928324 [PDF]
  16. [TCS] D. Miao, X. Liu, Y. Li, and J. Li, Vertex Cover in Conflict Graphs, Theoretical Computer Science, 774:103-112, 2019. DOI: 10.1016/j.tcs.2016.07.009 [PDF]
  17. [TCS] D. Miao, Z. Cai, and Y. Li, SEF View Deletion under Bounded Condition, Theoretical Computer Science, 749:17-25, 2018. DOI: 10.1016/j.tcs.2017.07.033 [PDF]
  18. [COMMAG] X. Zheng, Z. Cai, and Y. Li, Data Linkage in Smart IoT Systems: A Consideration from Privacy Perspective, IEEE Communications Magazine, 56(9):55-61, 2018. DOI: 10.1109/MCOM.2018.1701245 [PDF]
  19. [MNET] Y. Liang, Z. Cai, J. Yu, Q. Han, and Y. Li, Deep Learning Based Inference of Private Information Using Embedded Sensors in Smart Devices, IEEE Network Magazine, 32(4):8-14, 2018. DOI: 10.1109/MNET.2018.1700349 [PDF]
  20. [ACCESS] M. Siddula, L. Li, and Y. Li, An Empirical Study on the Privacy Preservation of Online Social Networks, IEEE Access, 6:19912-19922, 2018. DOI: 10.1109/ACCESS.2018.2822693 [PDF]
  21. [TCSS] J. Li, Z. Cai, J. Wang, M. Han, and Y. Li, Truthful Incentive Mechanisms for Geographical Position Conflicting Mobile Crowdsensing Systems, IEEE Transactions on Computational Social Systems, 5(2):324-334, 2018. DOI: 10.1109/TCSS.2018.2797225 [PDF]
  22. [TDSC] Z. Cai, Z. He, X. Guan, and Y. Li, Collective Data-Sanitization for Preventing Sensitive Information Inference Attacks in Social Networks, IEEE Transactions on Dependable and Secure Computing, 15(4):577-590, 2018. DOI: 10.1109/TDSC.2016.2613521 [PDF]
  23. [TON] B. Liu, W. Wang, D. Kim, Y. Li, S. Kwon, and Y. Jiang, On Practical Construction of Quality Fault-tolerant Virtual Backbone in Homogeneous Wireless Networks, IEEE/ACM Transactions on Networking, 26(1):412-421, 2018. DOI: 10.1109/TNET.2017.2780262 [PDF]
  24. [IOT-J] X. Zheng, Z. Cai, J. Yu, C. Wang, and Y. Li, Follow But No Track: Privacy Preserved Profile Publishing in Cyber-Physical Social Systems, IEEE Internet of Things Journal, 4(6):1868-1878, 2017. DOI: 10.1109/JIOT.2017.2679483 [PDF]
  25. [TON] T. Shi, S. Cheng, Z. Cai, Y. Li, and J. Li, Exploring Connected Dominating Sets in Energy-Harvest Networks, IEEE/ACM Transactions on Networking, 25(3):1803-1817, 2017. DOI: 10.1109/TNET.2017.2657688 [PDF]
  26. [TOSN] J. Li, S. Cheng, Z. Cai, J. Yu, C. Wang, and Y. Li, Approximate Holistic Aggregation in Wireless Sensor Networks, ACM Transactions on Sensor Networks, 12(2):No.11, 2016. DOI: 10.1145/3027488 [PDF]
  27. [TVT] Z. He, Z. Cai, J. Yu, X. Wang, Y. Sun and Y. Li, Cost-efficient Strategies for Restraining Rumor Spreading in Mobile Social Networks, IEEE Transactions on Vehicular Technology, 66(3):2789-2800, 2016. DOI: 10.1109/TVT.2016.2585591 [PDF]
  28. [TPDS] H. Gao, X. Fang, J. Li, and Y. Li, Data Collection in Multi-Application Sharing Wireless Sensor Networks, IEEE Transactions on Parallel and Distributed Systems, 26(2):403-412, 2015. DOI: 10.1109/TPDS.2013.289 [PDF]
  29. [WCMC] M. Yan, J. He, S. Ji, and Y. Li, Multi-Regional Query Scheduling in Wireless Sensor Networks with Minimum Latency, Wireless Communications and Mobile Computing, 4(9):849-864, 2014. DOI: 10.1002/wcm.2238 [PDF]
  30. [JOCO] M. Han, M. Yan, J. Li, S. Ji, and Y. Li, Neighborhood-based Uncertainty Generation in Social Networks, Journal of Combinatorial Optimization, 28(3):561-576, 2014. DOI: 10.1007/s10878-013-9684-y [PDF]
  31. [TPDS] J. He, S. Ji, Y. Pan, and Y. Li, Constructing Load-Balanced Data Aggregation Trees in Probabilistic Wireless Sensor Networks, IEEE Transactions on Parallel and Distributed Systems, 25(7):1681-1690, 2014. DOI: 10.1109/TPDS.2013.160 [PDF]
  32. [TOSN] S. Ji, J. He, A. S. Uluagac, R. Beyah, and Y. Li, Cell-based Snapshot and Continuous Data Collection in Wireless Sensor Networks, ACM Transactions on Sensor Networks, 9(4), 2013. DOI: 10.1145/2489253.2489264 [PDF]
  33. [JPDC] S. Ji, J. He, Y. Pan, and Y. Li, Continuous Data Aggregation and Capacity in Probabilistic Wireless Sensor Networks, Journal of Parallel and Distributed Computing, 73(6): 729-745, 2013. DOI: 10.1016/j.jpdc.2013.02.005 [PDF]
  34. [TPDS] S. Ji, Z. Cai, Y. Li, and X. Jia, Continuous Data Collection Capacity of Dual-Radio Multi-Channel Wireless Sensor Networks, IEEE Transactions on Parallel and Distributed Systems, 23(10):1844-1855, 2012. DOI: 10.1109/TPDS.2011.286 [PDF]
  35. [JOCO] Y. Li, Y. Wu, C. Ai, and R. Beyah, On the Construction of k-Connected m-Dominating Sets in Wireless Networks, Journal of Combinatorial Optimization, 23(1):118-139, 2012. DOI: 10.1007/s10878-010-9346-2 [PDF]
  36. [TPDS] Y. Li, C. Vu, C. Ai, G. Chen, and Y. Zhao, Transforming Complete Coverage Algorithms to Partial Coverage Algorithms for Wireless Sensor Networks, IEEE Transactions on Parallel and Distributed Systems, 22(4):695-703, 2011. DOI: 10.1109/TPDS.2010.124 [PDF]
  37. [TPDS] Y. Li, C. Ai, C. Vu, Y. Pan, and R. Beyah, Delay Bounded and Energy Efficient Composite Event Monitoring in Heterogeneous Wireless Sensor Networks, IEEE Transactions on Parallel and Distributed Systems, 21(9):1373-1385, 2010. DOI: 10.1109/TPDS.2009.129 [PDF]
  38. [TMC] A. S. Uluagac, R. Beyah, Y. Li, and J. Copeland, VEBEK: Virtual Energy-Based Encryption and Keying for Wireless Sensor Networks, IEEE Transactions on Mobile Computing, 9(7):994-1007, 2010. DOI: 10.1109/TMC.2010.51 [PDF]
  39. [TPDS] D. Kim, Y. Wu, Y. Li, F. Zou, and D.-Z. Du, Constructing Minimum Connected Dominating Sets with Bounded Diameters in Wireless Networks, IEEE Transactions on Parallel and Distributed Systems, 20(2):147-157, Feb. 2009. DOI: 10.1109/TPDS.2008.74 [PDF]
  40. [TMC] F. Wang, M. T. Thai, Y. Li, X. Cheng, and D.-Z. Du, Fault Tolerant Topology Control for One-to-All and All-to-One Communications in Wireless Networks, IEEE Transactions on Mobile Computing, 7(3):322-331, Mar. 2008. DOI: 10.1109/TMC.2007.70743 [PDF]
  41. [JOCO] Y. Li and S. Gao, Designing k-Coverage Schedules in Wireless Sensor Networks, Journal of Combinatorial Optimization, 15(2):127-146, Feb. 2008. DOI: 10.1007/s10878-007-9072-6 [PDF]
  42. [TMC] Y. Li, M. T. Thai, F. Wang, and D.-Z. Du, On the Construction of a Strongly Connected Broadcast Arborescence with Bounded Transmission Delay, IEEE Transactions on Mobile Computing, 5(10):1460-1470, Oct. 2006. DOI: 10.1109/TMC.2006.154 [PDF]
  43. [TCS] W. Wu, H. Du, X. Jia, Y. Li, and S. C.-H. Huang, Minimum connected dominating sets and maximal independent sets in unit disk graphs, Theoretical Computer Science, 352(1-3):1-7, 2006. DOI: 10.1016/j.tcs.2005.08.037 [PDF]
  44. [WCMC] Y. Li, M. T. Thai, F. Wang, C.-W. Yi, P.-J. Wan, and D.-Z. Du, On Greedy Construction of Connected Dominating Sets in Wireless Networks, Wireless Communications and Mobile Computing, 5(8):927-932, Dec. 2005. DOI: 10.1002/wcm.356 [PDF]
  45. [JPDC] Y. Li, M. X. Cheng, and W. Wu, Optimal Topology Control for Balanced Energy Consumption in Ad Hoc Wireless Networks, Journal of Parallel and Distributed Computing, 65(2):124-131, Feb. 2005. DOI: 10.1016/j.jpdc.2004.09.014 [PDF]
  46. [TCS] L. Ruan, H. Du, X. Jia, W. Wu, Y. Li, and K.-I Ko, A Greedy Approximation for Minimum Connected Dominating Sets, Theoretical Computer Science, 329(1-3):325-330, Dec. 2004. DOI: 10.1016/j.tcs.2004.08.013 [PDF]

Conference Papers:

  1. [CIKM] J. Han, W. Li, Z. Cai, and Y. Li, Multi-Aggregator Time-Warping Heterogeneous Graph Neural Network for Personalized Micro-video Recommendation, CIKM 2022, Atlanta, USA, October 17-21, 2022. DOI: 10.1145/3511808.3557403 [PDF]
  2. [SmartData] B. Xie, H. Xu, Y. Li, and Z. Cai A Self-Supervised Purification Mechnism for Adversarial Samples, IEEE Smart Data 2022, Espoo, Finland, August 22-25, 2022. DOI: 10.1109/iThings-GreenCom-CPSCom-SmartData-Cybermatics55523.2022.00102 [PDF] Best Paper Award
  3. [ICDCS] T. Shi, Z. Cai, and Y. Li, Query Recombination: To Process a Large Number of Concurrent Top-k Queries towards IoT Data on an Edge Server, ICDCS 2022, Bologna, Italy, July 10-13, 2022. DOI: 10.1109/ICDCS54860.2022.00060 [PDF]
  4. [ISBRA] H. Lee, M. Kang, Y. Li, D. Seo, and D. Kim, Epidemic Vulnerability Index for Effective Vaccine Distribution against Pandemic, ISBRA 2021, Shenzhen, China, November 26-28, 2021. DOI: 10.1007/978-3-030-91415-8_3 [PDF]
  5. [INFOCOM] T. Zhu, J. Li, Z. Cai, Y. Li, and H. Gao, Computation Scheduling for Wireless Powered Mobile Edge Computing Networks, INFOCOM 2020, Beijing, China, April 27-30, 2020. DOI: 10.1109/INFOCOM41043.2020.9155418 [PDF]
  6. [ICDE] Z. Cai, D. Miao, and Y. Li, Deletion Propagation for Multiple Select-Join Queries: Approximations and Complexity, ICDE 2019, Macau, China, April 8-12, 2019. DOI: 10.1109/ICDE.2019.00052 [PDF]
  7. [INFOCOM] Q. Chen, H. Gao, Y. Li, S. Cheng, and J. Li, Edge-Based Beaconing in Duty-Cycled Multihop Wireless Networks, INFOCOM 2017, Atlanta, GA, May 1-4, 2017. DOI: 10.1109/INFOCOM.2017.8057189 [PDF]
  8. [COCOA] D. Miao, Y. Li, X. Liu, and J. Li, On the Complexity of Bounded Deletion Propagation, COCOA 2016, Hong Kong, China, December 16-18, 2016. DOI: 10.1007/978-3-319-48749-6_33 [PDF]
  9. [GLOBECOM] M. Yan, C. Ai, M. Han, Z. Cai, and Y. Li, Data Aggregation Scheduling in Probabilistic Wireless Networks with Cognitive Radio Capability, GLOBECOM 2016, Washington, DC, December 4-8, 2016. DOI: 10.1109/GLOCOM.2016.7841716 [PDF]
  10. [PAMCO] Z. He, Z. Cai, and Y. Li, Customized Privacy Preserving for Classification Based Applications, PAMCO in conjunction with MobiHoc 2016, Paderborn, Germany, July 5-8, 2016. DOI: 10.1145/2940343.2940345 [PDF] Best Paper Award
  11. [INFOCOM] J. Li, Z. Cai, M. Yan, and Y. Li, Using Crowdsourced Data in Location-based Social Networks to Explore Influence Maximization, INFOCOM 2016, San Francisco, CA, April 10-15, 2016. DOI: 10.1109/INFOCOM.2016.7524471 [PDF]
  12. [SECON] M. Yan, S. Ji, M. Han, Y. Li, and Z. Cai, Data Aggregation Scheduling in Wireless Networks with Cognitive Radio Capability, SECON 2014, University Town, Singapore, June 30-July 3, 2014. DOI: 10.1109/SAHCN.2014.6990390 [PDF]
  13. [INFOCOM] X. Fang, H. Gao, J. Li, and Y. Li, Approximate Multiple Count in Wireless Sensor Networks, INFOCOM 2014, Toronto, Canada, April 27-May 2, 2014. DOI: 10.1109/INFOCOM.2014.6848082 [PDF]
  14. [INFOCOM] X. Fang, H. Gao, J. Li, and Y. Li, Application-Aware Data Collection in Wireless Sensor Networks, INFOCOM 2013, Turin, Italy, April 14-19, 2013. DOI: 10.1109/INFCOM.2013.6566961 [PDF]
  15. [INFOCOM] M. Valero, S. S. Jung, A. S. Uluagac, Y. Li, and R. Beyah, Di-Sec: A Distributed Security Framework for Heterogeneous Wireless Sensor Networks, INFOCOM 2012, Orlando, FL, March 25-30, 2012. DOI: 10.1109/INFCOM.2012.6195801 [PDF]
  16. [MASS] S. Ji, R. Beyah, Y. Li, Continuous Data Collection Capacity of Wireless Sensor Networks Under Physical Interference Model, MASS 2011, Valencia, Spain, October 17-22, 2011. DOI: 10.1109/MASS.2011.29 [PDF]
  17. [INFOCOM] S. Ji, Y. Li, and X. Jia, Capacity of Dual-Radio Multi-Channel Wireless Sensor Networks for Continuous Data Collection, INFOCOM 2011, Shanghai, China, April 10-15, 2011. DOI: 10.1109/INFCOM.2011.5934880 [PDF]
  18. [INFOCOM] L. Guo, R. Beyah, and Y. Li, SMITE: A Stochastic Compressive Data Collection Protocol for Mobile Wireless Sensor Networks, INFOCOM 2011, Shanghai, China, April 10-15, 2011. DOI: 10.1109/INFCOM.2011.5934953 [PDF]
  19. [INFOCOM] B. Zhang, X. Cheng, N. Zhang, Y. Cui, Y. Li, and Q. Liang, Sparse Target Counting and Localization in Sensor Networks Based on Compressive Sensing, INFOCOM 2011, Shanghai, China, April 10-15, 2011. DOI: 10.1109/INFCOM.2011.5935041 [PDF]
  20. [ICDCS] Y. Li, L. Guo, and S. Prasad, An Energy-Efficient Distributed Algorithm for Minimum-Latency Aggregation Scheduling in Wireless Sensor Networks, ICDCS 2010, Genoa, Italy, June 21-25, 2010. DOI: 10.1109/ICDCS.2010.11 [PDF]
  21. [MSN] C. Ai, L. Guo, Z. Cai, and Y. Li, Processing Area Queries in Wireless Sensor Networks, MSN 2009, Wu Yi Mountain, China, December 14-16, 2009. DOI: 10.1109/MSN.2009.72 [PDF] Best Paper Award
  22. [WASA] C. Ai, R. Du, M. Zhang, and Y. Li, In-network Historical Data Storage and Query Processing Based on Distributed Indexing Techniques in Wireless Sensor Networks, WASA 2009, Boston, MA, August 16-18, 2009. doi.org/10.1007/978-3-642-03417-6_26 [PDF]
  23. [ICCCN] Y. Wu and Y. Li, Distributed Indexing and Data Dissemination in Large Scale Wireless Sensor Networks, ICCCN 2009, San Francisco, CA, August 2-6, 2009. DOI: 10.1109/ICCCN.2009.5235382 [PDF]
  24. [INFOCOM] B. Yu, J. Li, and Y. Li, Distributed Data Aggregation Scheduling in Wireless Sensor Networks, INFOCOM 2009, Rio de Janeiro, Brazil, April 19-25, 2009. DOI: 10.1109/INFCOM.2009.5062140 [PDF]
  25. [ICCCN] S. Gao, X. Wang, and Y. Li, p-Percent Coverage Schedule in Wireless Sensor Networks, ICCCN 2008, St. Thomas, Virgin Islands, August 3-7, 2008. DOI: 10.1109/ICCCN.2008.ECP.109 [PDF]
  26. [ICDCS] Y. Li, C. Ai, W. Deshmukh, and Y. Wu, Data Estimation in Sensor Networks Using Physical and Statistical Methodologies, ICDCS 2008, Beijing, China, June 17-20, 2008. DOI: 10.1109/ICDCS.2008.22 [PDF]
  27. [MOBIHOC] Y. Wu and Y. Li, Construction Algorithms for k-Connected m-Dominating Sets in Wireless Sensor Networks, Mobihoc 2008, Hong Kong, China, May 26-30, 2008. DOI: 10.1145/1374618.1374631 [PDF]
  28. [WASA] Y. Li, D. Kim, F. Zou, and D.-Z. Du, Constructing Connected Dominating Sets with Bounded Diameters in Wireless Networks, WASA 2007, Chicago, IL, August 1-3, 2007. DOI: 10.1109/WASA.2007.8 [PDF] Best Paper Award
  29. [INFOCOM] S. C.H. Huang, P.-J. Wan, C. T. Vu, Y. Li, and F. Yao, Nearly Constant Approximation for Data Aggregation Scheduling in Wireless Sensor Networks, INFOCOM 2007, Anchorage, AK, May 6-12, 2007. DOI: 10.1109/INFCOM.2007.50 [PDF]
  30. [IPCCC] C. T. Vu, R. Beyah, and Y. Li, Composite Event Detection in Wireless Sensor Networks, IPCCC 2007, New Orleans, LA, April 11-13, 2007. DOI: 10.1109/PCCC.2007.358903 [PDF]
  31. [INFOCOM] M. Cardei, M. T. Thai, Y. Li, and W. Wu, Energy-Efficient Target Coverage in Wireless Sensor Networks, INFOCOM 2005, Miami, FL, March 13-17, 2005. DOI: 10.1109/INFCOM.2005.1498475 [PDF]
  32. [TAWN] Y. Li, S. Zhu, M. T. Thai, and D.-Z. Du, Localized Construction of Connected Dominating Set in Wireless Networks, NSF International Workshop on Theoretical Aspects of Wireless Ad Hoc, Sensor and Peer-to-Peer Networks (TAWN), Chicago, June 2004. [PDF]

Books:

  1. Y. Li, M. T. Thai, and W. Wu, Wireless Sensor Networks and Applications, in book series Signals and Communication Technology, Springer, ISBN: 978-0-387-49591-0, DOI: 10.1007/978-0-387-49592-7.
  2. M. X. Cheng, Y. Li, and D.-Z. Du, Combinatorial Optimization in Communication Networks, in book series Combinatorial Optimization, Vol. 18, Springer, ISBN: 978-0-387-29025-6, DOI: 10.1007/0-387-29026-5.

COPYRIGHT: The above materials are copyrighted by the corresponding publishers.