覆盖数不超过3的图上渡河问题
朱恺丽,单而芳
River Crossing Problem on Graphs with Cover Number at Most Three
ZHU Kai-li, SHAN Er-fang
运筹与管理 . 2018, (8): 79 -83 .  DOI: 10.12005/orms.2018.0184