@article{1103033792,
author = {Dean, R. A. and Oehmke, Robert H.},
title = {Idempotent semigroups with distributive right congruence lattices.},
journal = {Pacific J. Math.},
volume = {14},
number = {4},
year = {1964},
pages = { 1187-1209},
language = {en},
url = {http://dml.mathdoc.fr/item/1103033792}
}
Dean, R. A.; Oehmke, Robert H. Idempotent semigroups with distributive right congruence lattices.. Pacific J. Math., Tome 14 (1964) no. 4, pp. 1187-1209. http://gdmltest.u-ga.fr/item/1103033792/