共 3 条
[1]
[2]
算法设计与分析.[M].霍红卫编著;.西安电子科技大学出版社.2005,
[3]
An analysis of approximations for maximizing submodular set functions—I.[J].G. L. Nemhauser;L. A. Wolsey;M. L. Fisher.Mathematical Programming.1978, 1

