@article{1183509413,
author = {Whitman, Philip M.},
title = {Lattices, equivalence relations, and subgroups},
journal = {Bull. Amer. Math. Soc.},
volume = {52},
number = {12},
year = {1946},
pages = { 507-522},
language = {en},
url = {http://dml.mathdoc.fr/item/1183509413}
}
Whitman, Philip M. Lattices, equivalence relations, and subgroups. Bull. Amer. Math. Soc., Tome 52 (1946) no. 12, pp. 507-522. http://gdmltest.u-ga.fr/item/1183509413/