%0 Journal Article
%A A. A. Shaikh
%A Y. Matsuyama
%T Curvature Properties of Some 4-Dimensional Semi-Riemannian Metrics
%J Kragujevac Journal of Mathematics
%D 2017
%P 259 
%V 41
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/KJM_2017_41_2_a6/
%G en
%F KJM_2017_41_2_a6