%0 Journal Article %A Shigeo Sasaki %T On complete surfaces with Gaussian curvature zero in 3-sphere %J Colloquium Mathematicum %D 1972 %P 165-174 %V 26 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-26-1-165-174/ %R 10.4064/cm-26-1-165-174 %G en %F 10_4064_cm_26_1_165_174