TY  - BOOK
AU  - Mladenovic,Pavle
TI  - Combinatorics: a problem-based approach 
T2  - Problem books in mathematics
SN  - 9783030008307
AV  - QA164 M53
PY  - 2019///]
CY  - Cham, Switzerland
PB  - Springer
KW  - Análisis combinatorio
ER  -