@article{CLTM_1974_1974_1_a11,
     author = {Carlitz, L. and  Klamkin, S.},
     title = {Stirling {Operators.}},
     journal = {Collectanea mathematica},
     pages = {186-212},
     year = {1974},
     volume = {25},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CLTM_1974_1974_1_a11/}
}