@article{1256055104, author = {Iqbalunnisa}, title = {Normal, simple and neutral congruences on lattices}, journal = {Illinois J. Math.}, volume = {10}, number = {4}, year = {1966}, pages = { 227-234}, language = {en}, url = {http://dml.mathdoc.fr/item/1256055104} }
Iqbalunnisa. Normal, simple and neutral congruences on lattices. Illinois J. Math., Tome 10 (1966) no. 4, pp. 227-234. http://gdmltest.u-ga.fr/item/1256055104/