TY  - JOUR
AU  - D.E. Blair
AU  - Th. Koufogiorgos
TI  - Ruled Surfaces with Vanishing Second Gaussian Curvature.
JO  - Monatshefte für Mathematik
PY  - 1992
SP  - 177
EP  - 182
VL  - 113
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MOMA_1992__113_4_178558/
ID  - MOMA_1992__113_4_178558
ER  -