@article{PORMA_1965__24_3_114959,
     author = {Horadam, E.M.},
     title = {Unitary divisor functions of a generalised integer},
     journal = {Portugaliae mathematica},
     pages = {131--143},
     publisher = {mathdoc},
     volume = {24},
     number = {3},
     year = {1965},
     mrnumber = {0218317},
     zbl = {0161.04601},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1965__24_3_114959/}
}