Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{CMUC_1990__31_4_a0, author = {Goeters, H. Pat and Ullery, William}, title = {Butler groups and lattices of types}, journal = {Commentationes Mathematicae Universitatis Carolinae}, pages = {613--619}, publisher = {mathdoc}, volume = {31}, number = {4}, year = {1990}, mrnumber = {1091358}, zbl = {0717.20039}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CMUC_1990__31_4_a0/} }
Goeters, H. Pat; Ullery, William. Butler groups and lattices of types. Commentationes Mathematicae Universitatis Carolinae, Tome 31 (1990) no. 4, pp. 613-619. http://geodesic.mathdoc.fr/item/CMUC_1990__31_4_a0/