Combinatorial problems in mathematical competitions /
Zhang, Yao.
Combinatorial problems in mathematical competitions / Yao Zhang. - Singapore : World Scientific, c2011. - 289 p. ; - Mathematical Oympiad series ; 4. .
9789812839497 (pbk.) 9812839496 (pbk.)
Combinatorial analysis--Problems, exercises, etc.
519.1 / ZHA
Combinatorial problems in mathematical competitions / Yao Zhang. - Singapore : World Scientific, c2011. - 289 p. ; - Mathematical Oympiad series ; 4. .
9789812839497 (pbk.) 9812839496 (pbk.)
Combinatorial analysis--Problems, exercises, etc.
519.1 / ZHA