id: 70697324 dt: a an: 70697324 au: Ho, Tsu-Feng; Shyu, Shyong Jian; Lin, Bertrand M. T.; Wu, Yi-Ling ti: An evolutionary approach to library materials acquisition problems so: IEEE Conf. of Intelligent Systems, 450-455 (2010). py: 2010 pu: la: EN cc: ut: ci: li: doi:10.1109/IS.2010.5548400