TY - Journal of Computer Applications A1 - MAO Minli, LIANG Chengji, HU Xiaoyuan T1 - Optimization of quay crane assignment based on ship efficiency Y1 - 2020-04-10 JF - Journal of Computer Applications JO - Journal of Computer Applications SP - 1223 EP - 1230 VL - 40 IS - 4 UR - http://www.joca.cn N1 - 10.11772/j.issn.1001-9081.2019081528 ER -