TY - JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) A1 - YANG Zhong-liang, GUO Gai-hui T1 - Bifurcation analysis of positive solutions for a predator-prey model with B-D functional response Y1 - 2020-07-20 JF - JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) JO - JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) SP - 9 EP - 15 VL - 55 IS - 7 UR - http://lxbwk.njournal.sdu.edu.cn N1 - 10.6040/j.issn.1671-9352.0.2020.028 ER -