%0 Journal Article %A M. N. I. Khan %A L. S. Das %T On CR-Structures and the General Quadratic Structure %J Journal for geometry and graphics %D 2020 %P 249-255 %V 24 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/JGG_2020_24_2_JGG_2020_24_2_a8/ %F JGG_2020_24_2_JGG_2020_24_2_a8