@article{ARM_1973_9_2_a1,
     author = {Karpe, Robert},
     title = {On a certain analogy of {Stirling's} numbers of the 2nd kind},
     journal = {Archivum mathematicum},
     pages = {57--60},
     year = {1973},
     volume = {9},
     number = {2},
     mrnumber = {0349405},
     zbl = {0282.05006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_1973_9_2_a1/}
}