@article{COMIM_1998_6_1_a6,
     author = {Bulant, Michal},
     title = {On the parity of the class number of the field $\Bbb Q(\sqrt p,\sqrt q,\sqrt r)$},
     journal = {Communications in Mathematics},
     pages = {41--52},
     year = {1998},
     volume = {6},
     number = {1},
     mrnumber = {1822514},
     zbl = {1024.11071},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/COMIM_1998_6_1_a6/}
}