%0 Journal Article %A R. A. Abdel-Baky %T On Instantaneous Rectilinear Congruences %J Journal for geometry and graphics %D 2003 %P 129-136 %V 7 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/JGG_2003_7_2_JGG_2003_7_2_a0/ %F JGG_2003_7_2_JGG_2003_7_2_a0