@article{AM2_1973__9_136345,
     author = {D.B. LAHIRI},
     title = {Hypo-Multiplicative {Number} - {Theoretic} {Functions}},
     journal = {Aequationes mathematicae},
     pages = {184--192},
     publisher = {mathdoc},
     volume = {9},
     year = {1973},
     zbl = {0265.10005},
     url = {http://geodesic.mathdoc.fr/item/AM2_1973__9_136345/}
}