Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MOMA_1987__103_178315, author = {Gerhard Behrendt}, title = {Equivalence {Systems} with {Finitely} {Many} {Relations.}}, journal = {Monatshefte f\"ur Mathematik}, pages = {77--84}, publisher = {mathdoc}, volume = {103}, year = {1987}, zbl = {0606.08002}, url = {http://geodesic.mathdoc.fr/item/MOMA_1987__103_178315/} }
Gerhard Behrendt. Equivalence Systems with Finitely Many Relations.. Monatshefte für Mathematik, Tome 103 (1987), pp. 77-84. http://geodesic.mathdoc.fr/item/MOMA_1987__103_178315/