Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MOMA_1960__64_177094, author = {Herbert Izbicki}, title = {Graphentransformationen.}, journal = {Monatshefte f\"ur Mathematik}, pages = {135--175}, publisher = {mathdoc}, volume = {64}, year = {1960}, language = {de}, url = {http://geodesic.mathdoc.fr/item/MOMA_1960__64_177094/} }
Herbert Izbicki. Graphentransformationen.. Monatshefte für Mathematik, Tome 64 (1960), pp. 135-175. http://geodesic.mathdoc.fr/item/MOMA_1960__64_177094/