TY - BOOK AU - Chuan-Chong, Chen and Khee-Meng, Koh AU - Khee-Meng, Koh ; jt. auth. ED - ED - ED - TI - Principles and techniques in combinatorics SN - 9789810211394 U1 - 511.6 PY - 2012/// CY - Singapore PB - World Scientific KW - ER -