TY - Journal of East China Normal University(Natural Science) A1 - YUAN Pei-sen, LI Wei, REN Shou-gang, XU Huan-liang T1 - Algorithm for service optimization under multi-QoS constraints for data services in a food traceability system Y1 - 2018-05-25 JF - Journal of East China Normal University(Natural Science) JO - Journal of East China Normal University(Natural Science) SP - 67 EP - 76 VL - 2018 IS - 3 UR - https://xblk.ecnu.edu.cn N1 - 10.3969/j.issn.1000-5641.2018.03.008 ER -