Wang Z.JIUH-BIING SHEU2020-03-062020-03-062019https://scholars.lib.ntu.edu.tw/handle/123456789/472117Vehicle routing problem with dronesjournal article10.1016/j.trb.2019.03.005https://www2.scopus.com/inward/record.uri?eid=2-s2.0-85062711152&doi=10.1016%2fj.trb.2019.03.005&partnerID=40&md5=78b0b502e6cdacdfd3d9cf96462b7d2d