TY - Computer Engineering and Applications A1 - ZHANG Xiaonan, JIANG Shuai, NAN Jingwen T1 - Research on Multi-depots Vehicle Routing Problem with Semi-flexible Coverage Service Y1 - 2021-05-15 JF - Computer Engineering and Applications JO - Computer Engineering and Applications SP - 225 EP - 232 VL - 57 IS - 10 UR - http://cea.ceaj.org N1 - 10.3778/j.issn.1002-8331.2101-0248 ER -