Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MZ_1971__122_171576, author = {Claus Michael Ringel}, title = {Diagonalisierungspaare. {II.}}, journal = {Mathematische Zeitschrift}, pages = {10--32}, publisher = {mathdoc}, volume = {122}, year = {1971}, zbl = {0206.30101}, url = {http://geodesic.mathdoc.fr/item/MZ_1971__122_171576/} }
Claus Michael Ringel. Diagonalisierungspaare. II.. Mathematische Zeitschrift, Tome 122 (1971), pp. 10-32. http://geodesic.mathdoc.fr/item/MZ_1971__122_171576/