TY  - BOOK
AU  - Sachkov Vladimir N.   
AU  - Kolchin V.
TI  - Combinatorial methods in discrete mathematics 
U1  - 511.6 
PY  - 2010///
CY  - New York
PB  - CUP
KW  - Combinatorial analysis
UR  - http://ebooks.cambridge.org/ebook.jsf?bid=CBO9780511666186   
ER  -