TY - Journal of Computer Applications A1 - SHEN Yumin, WANG Jinlong, HU Diankai, LIU Xingyu T1 - Multi-person collaborative creation system of building information modeling drawings based on blockchain Y1 - 2021-08-10 JF - Journal of Computer Applications JO - Journal of Computer Applications SP - 2338 EP - 2345 VL - 41 IS - 8 UR - http://www.joca.cn N1 - 10.11772/j.issn.1001-9081.2020101549 ER -