%0 Journal Article %A Singh, S.P. %A Russell, W. %T A Note on a Sequence of Contraction Mappings %J Canadian mathematical bulletin %D 1969 %P 513-516 %V 12 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1969-068-2/ %R 10.4153/CMB-1969-068-2 %F 10_4153_CMB_1969_068_2