@article{GDZPPN002342642, title = {Congruous and incongruous one-to-one correspondences}, journal = {Mathematica Scandinavica}, volume = {1}, year = {1953}, pages = {256-260}, zbl = {0053.03002}, url = {http://dml.mathdoc.fr/item/GDZPPN002342642} }
BAGEMIHL, FREDERICK. Congruous and incongruous one-to-one correspondences. Mathematica Scandinavica, Tome 1 (1953) pp. 256-260. http://gdmltest.u-ga.fr/item/GDZPPN002342642/