@article{05282475, title = {Extending Hall's theorem into list colorings: a partial history.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {2007}, year = {2007}, doi = {10.1155/2007/72168}, zbl = {1139.05021}, language = {en}, url = {http://dml.mathdoc.fr/item/05282475} }
Hoffman, Dean G.; Johnson, Peter D.jun. Extending Hall's theorem into list colorings: a partial history.. International Journal of Mathematics and Mathematical Sciences, Tome 2007 (2007) . doi : 10.1155/2007/72168. http://gdmltest.u-ga.fr/item/05282475/