Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MZ_1970__115_171334, author = {R. Arthur Knoebel}, title = {Primal {Extensions} of {Universal} {Algebras.}}, journal = {Mathematische Zeitschrift}, pages = {53--57}, publisher = {mathdoc}, volume = {115}, year = {1970}, zbl = {0182.34302}, url = {http://geodesic.mathdoc.fr/item/MZ_1970__115_171334/} }
R. Arthur Knoebel. Primal Extensions of Universal Algebras.. Mathematische Zeitschrift, Tome 115 (1970), pp. 53-57. http://geodesic.mathdoc.fr/item/MZ_1970__115_171334/