@article{10_4064_aa_17_4_345_354,
     author = {D. Suryanarayana and V. Siva Rama Prasad},
     title = {The number of k-free divisors of an integer},
     journal = {Acta Arithmetica},
     pages = {345--354},
     publisher = {mathdoc},
     volume = {17},
     number = {4},
     year = {1970},
     doi = {10.4064/aa-17-4-345-354},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-17-4-345-354/}
}