@article{10_4153_CJM_2011_034_2,
     author = {Gun, Sanoli and Murty, M. Ram and Rath, Purusottam},
     title = {On a {Conjecture} of {Chowla} and {Milnor}},
     journal = {Canadian journal of mathematics},
     pages = {1328--1344},
     year = {2011},
     volume = {63},
     number = {6},
     doi = {10.4153/CJM-2011-034-2},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-2011-034-2/}
}