TY - JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) A1 - QIAO Hu-sheng, ZHAO Ting-ting T1 - On products of S-acts Y1 - 2018-04-20 JF - JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) JO - JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) SP - 16 EP - 19 VL - 53 IS - 4 UR - http://lxbwk.njournal.sdu.edu.cn N1 - 10.6040/j.issn.1671-9352.0.2017.419 ER -