@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/