@article{10_4153_CJM_1995_054_7,
     author = {Mollin, R. A. and Williams, H. C.},
     title = {Proof, {Disproof} and {Advances} {Concerning} {Certain} {Conjectures} on {Real} {Quadratic} {Fields}},
     journal = {Canadian journal of mathematics},
     pages = {1023--1036},
     year = {1995},
     volume = {47},
     number = {5},
     doi = {10.4153/CJM-1995-054-7},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1995-054-7/}
}