%0 Journal Article %T On the Existence and Uniqueness of Solutions of the Equation %J Canadian mathematical bulletin %D 1975 %P 181-187 %V 18 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1975-036-1/ %R 10.4153/CMB-1975-036-1 %F 10_4153_CMB_1975_036_1