@article{MS2_1969__24_166089,
     author = {A. Olubummo},
     title = {Finitely {Additive} {Measures} on the {Non-Negative} {Integers.}},
     journal = {Mathematica Scandinavica},
     pages = {186--194},
     publisher = {mathdoc},
     volume = {24},
     year = {1969},
     zbl = {0187.06804},
     url = {http://geodesic.mathdoc.fr/item/MS2_1969__24_166089/}
}