%0 Journal Article
%A D. Papadopoulou
%A P. Koltsaki 
%T Triply Orthogonal Line Congruences with Common Middle Surface
%J Journal for geometry and graphics
%D 2010
%P 45-58
%V 14
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/JGG_2010_14_1_JGG_2010_14_1_a3/
%F JGG_2010_14_1_JGG_2010_14_1_a3