%0 Journal Article %A Marica, John %T On A Conjecture of Conway %J Canadian mathematical bulletin %D 1969 %P 233-234 %V 12 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1969-029-4/ %R 10.4153/CMB-1969-029-4 %F 10_4153_CMB_1969_029_4