TY - JOUR VL - 49 IS - 3/5 Y1 - 2012/// UR - http://publicatio.bibl.u-szeged.hu/7279/ EP - 396 SN - 0196-8858 JF - ADVANCES IN APPLIED MATHEMATICS AV - public A1 - Nagy Gábor TI - A combinatorial proof of Shapiro's Catalan convolution ID - publicatio7279 SP - 391 ER -