@article{05862763, title = {Combinatorial interpretations of convolutions of the Catalan numbers.}, journal = {Integers}, volume = {11}, year = {2011}, pages = {35-45}, doi = {10.1515/INTEG.2011.003}, zbl = {1225.11031}, language = {en}, url = {http://dml.mathdoc.fr/item/05862763} }
Tedford, Steven J. Combinatorial interpretations of convolutions of the Catalan numbers.. Integers, Tome 11 (2011) pp. 35-45. doi : 10.1515/INTEG.2011.003. http://gdmltest.u-ga.fr/item/05862763/