TY - GEN T1 - The legal protection of computer software and its trend of development :A tentative discussion / AU - Zheng, Chengsi, VL - 1987 No 1 pages 34-37 64 ID - 8210 KW - Copyright. KW - Trademarks. KW - Patents. KW - COPYRIGHT : COMPUTER WORKS PROTECTION, SOFTWARE PROTECTION TI - The legal protection of computer software and its trend of development :A tentative discussion / ER -