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@article{MOMA_1969__73_177457, author = {L. Mirsky}, title = {Hall's {Criterion} as a {'Self-Refining'} {Result.}}, journal = {Monatshefte f\"ur Mathematik}, pages = {139--146}, publisher = {mathdoc}, volume = {73}, year = {1969}, zbl = {0199.31705}, url = {http://geodesic.mathdoc.fr/item/MOMA_1969__73_177457/} }
L. Mirsky. Hall's Criterion as a 'Self-Refining' Result.. Monatshefte für Mathematik, Tome 73 (1969), pp. 139-146. http://geodesic.mathdoc.fr/item/MOMA_1969__73_177457/