%0 Journal Article %A Hiroshi Endo %T On an extended contact Bochner curvature tensor on contact metric manifolds %J Colloquium Mathematicum %D 1993 %P 33-41 %V 65 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-65-1-33-41/ %R 10.4064/cm-65-1-33-41 %G en %F 10_4064_cm_65_1_33_41