TY  - JOUR
AU  - P. Koltsaki
AU  - D. Papadopoulou 
TI  - Orthogonal Line Congruences with Common Middle Surface
JO  - Journal for geometry and graphics
PY  - 2008
SP  - 123
EP  - 132
VL  - 12
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/JGG_2008_12_2_JGG_2008_12_2_a0/
ID  - JGG_2008_12_2_JGG_2008_12_2_a0
ER  -