TY - JOUR AU - Nyul, Gábor AU - Rácz, Gabriella TI - Matchings in complete bipartite graphs and the $r$-Lah numbers JO - Czechoslovak Mathematical Journal PY - 2021 SP - 947 EP - 959 VL - 71 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.2021.0148-20/ DO - 10.21136/CMJ.2021.0148-20 LA - en ID - 10_21136_CMJ_2021_0148_20 ER -