Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{ARM_1967__3_4_a3, author = {Rosenberg, Ivo}, title = {Maximale {Gegenketten} im {Verband} $3^n$}, journal = {Archivum mathematicum}, pages = {185--190}, publisher = {mathdoc}, volume = {03}, number = {4}, year = {1967}, mrnumber = {0240013}, zbl = {0214.26601}, language = {ge}, url = {http://geodesic.mathdoc.fr/item/ARM_1967__3_4_a3/} }
Rosenberg, Ivo. Maximale Gegenketten im Verband $3^n$. Archivum mathematicum, Tome 03 (1967) no. 4, pp. 185-190. http://geodesic.mathdoc.fr/item/ARM_1967__3_4_a3/