@article{ARM_1967_3_4_a3,
     author = {Rosenberg, Ivo},
     title = {Maximale {Gegenketten} im {Verband} $3^n$},
     journal = {Archivum mathematicum},
     pages = {185--190},
     year = {1967},
     volume = {3},
     number = {4},
     mrnumber = {0240013},
     zbl = {0214.26601},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/ARM_1967_3_4_a3/}
}