TY - JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) A1 - HUANG Ju, FAN Xin-xiang T1 - Limit categories of complete categories and η-extensions Y1 - JF - JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) JO - JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) SP - 43 EP - 47 VL - 55 IS - 8 UR - http://lxbwk.njournal.sdu.edu.cn N1 - 10.6040/j.issn.1671-9352.0.2019.736 ER -