TY - JOUR AU - Andrzej Czygrinow AU - Vikram Kamat TI - Tight co-degree condition for perfect matchings in 4-graphs JO - The electronic journal of combinatorics PY - 2012 VL - 19 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.37236/2338/ DO - 10.37236/2338 ID - 10_37236_2338 ER -