@article{10_37236_2338,
     author = {Andrzej Czygrinow and Vikram Kamat},
     title = {Tight co-degree condition for perfect matchings in 4-graphs},
     journal = {The electronic journal of combinatorics},
     year = {2012},
     volume = {19},
     number = {2},
     doi = {10.37236/2338},
     zbl = {1244.05176},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/2338/}
}