00489nam 2228283 450000100060000000300230000600500090002900800410003808200080007907200160008702000180010310000210012126000240014224500530016665000160021965000240023565000500025928283StarLibrary Marc Built20180430201711 ||||| |||||||||||amh  a511 abasic tools a0-07-003575-x av.k.balakrishnan bMCGRAW. HILL c1995 acombinatorics including concepts of graph theory abasic tools afurther basic tools agenerating functions and recurrence relations