@article{ARM_1967_3_4_a5,
     author = {Havel, V\'aclav},
     title = {Partitions in ternars},
     journal = {Archivum mathematicum},
     pages = {209--213},
     year = {1967},
     volume = {3},
     number = {4},
     mrnumber = {0238751},
     zbl = {0215.40402},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_1967_3_4_a5/}
}