@article{NSJOM_1983_13_Nonea_3,
     author = {Ivi\'c Aleksandar},
     title = {On the number of abelian groups of a 

 given order and the number of prime factors of an integer},
     journal = {Novi Sad Journal of Mathematics},
     pages = {41-50},
     publisher = {mathdoc},
     volume = {13},
     year = {1983},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1983_13_Nonea_3/}
}