%0 Journal Article %A Abhitosh Upadhyay, %A Ram Shankar Gupta %T Lightlike hypersurfaces of indefinite cosymplectic manifolds with parallel symmetric bilinear forms %J Novi Sad Journal of Mathematics %D 2010 %P 37-45 %V 40 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/NSJOM_2010_40_2a_5/ %F NSJOM_2010_40_2a_5