@article{RCM_1968__2_181552,
     author = {G. Victor Albis},
     title = {A note on generalized mobius ...-functions},
     journal = {Revista colombiana de matematicas},
     pages = {6--11},
     publisher = {mathdoc},
     volume = {2},
     year = {1968},
     zbl = {0169.37001},
     url = {http://geodesic.mathdoc.fr/item/RCM_1968__2_181552/}
}