浅谈图书监测系统原理及故障的排除
孟永生
Brief Introduction to Systematic Principle that the Books Monitor and It Get over Obstacles
Meng Yongsheng
现代图书情报技术 . 1999, (3): 60 -61 .  DOI: 10.11925/infotech.1003-3513.1999.03.19