TY - JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) A1 - QIAN Xin-qiang, WANG Kai-rong T1 - Optimality conditions on nonsmooth vector interval-valued optimization Y1 - JF - JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) JO - JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) SP - 26 EP - 34 VL - 55 IS - 11 UR - http://lxbwk.njournal.sdu.edu.cn N1 - 10.6040/j.issn.1671-9352.0.2019.141 ER -