%0 Journal Article %A Zbigniew Olszak %T Normal almost contact metric manifolds of dimension three %J Annales Polonici Mathematici %D 1986 %P 41-50 %V 47 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-47-1-41-50/ %R 10.4064/ap-47-1-41-50 %G en %F 10_4064_ap_47_1_41_50