Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MOMA_1970__74_177491, author = {Herbert Izbicki}, title = {\"Uber {Unterb\"aume} eines {Baumes.}}, journal = {Monatshefte f\"ur Mathematik}, pages = {56--62}, publisher = {mathdoc}, volume = {74}, year = {1970}, zbl = {0209.28102}, url = {http://geodesic.mathdoc.fr/item/MOMA_1970__74_177491/} }
Herbert Izbicki. Über Unterbäume eines Baumes.. Monatshefte für Mathematik, Tome 74 (1970), pp. 56-62. http://geodesic.mathdoc.fr/item/MOMA_1970__74_177491/