Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{SF_1985__32_134777, author = {W. Ruppert}, title = {A note on the location of joint discontinuity.}, journal = {Semigroup forum}, pages = {173--182}, publisher = {mathdoc}, volume = {32}, year = {1985}, zbl = {0578.57013}, url = {http://geodesic.mathdoc.fr/item/SF_1985__32_134777/} }
W. Ruppert. A note on the location of joint discontinuity.. Semigroup forum, Tome 32 (1985), pp. 173-182. http://geodesic.mathdoc.fr/item/SF_1985__32_134777/