TY - BOOK AU - Bergeron,F. AU - Labelle,Gilbert AU - Leroux,Pierre ED - University of Cambridge TI - Combinatorial species and tree-like structures T2 - Encyclopedia of mathematics and its applications SN - 0521573238 (encuadernado) AV - QA164.8 B4713 1998 U1 - 511/.5 20 PY - 1998/// CY - Cambridge PB - Cambridge University Press KW - Problemas combinatorios de enumeraciĆ³n N1 - Includes bibliographical references (p. [434]-446) and indexes ER -