Kun LuFengqi LiJizhen NiuLing XieDesign and Realization of High-Reliability Courses Selection System Based on Mainframe.753-7562008CSSE (5)https://doi.org/10.1109/CSSE.2008.1107https://doi.ieeecomputersociety.org/10.1109/CSSE.2008.1107conf/csse/2008-5db/conf/csse/csse2008-5.html#KunFJL08