SHU-CHENG CHANG2019-10-282019-10-2819960024-3795https://scholars.lib.ntu.edu.tw/handle/123456789/428542Double coset decomposition for SL(r+s,Z) with respect to congruence subgroupsjournal article10.1016/0024-3795(94)00201-0WOS:A1996VD69800001