共 39 条
[1]
Adamopoulos GI, 1996, J OPER RES SOC, V47, P1280, DOI 10.1057/jors.1996.155
[7]
Kovari T., 1988, INEQUALITIES, V72, P333, DOI [10.1017/s0025557200143451, DOI 10.1017/S0025557200143451, 10.1017/S0025557200143451]