@article{10_4153_CMB_1982_027_0,
     author = {Leonard, Philip A. and Williams, Kenneth S.},
     title = {On the {Divisibility} of the {Class} {Numbers} of {Q(\ensuremath{\sqrt{}}\ensuremath{-}p)} and {Q(\ensuremath{\sqrt{}}\ensuremath{-}2p)} by 16.},
     journal = {Canadian mathematical bulletin},
     pages = {200--206},
     year = {1982},
     volume = {25},
     number = {2},
     doi = {10.4153/CMB-1982-027-0},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1982-027-0/}
}