O. Karwowski. "Vertical lines and points of a surface." Annales Polonici Mathematici 14.2 (1964): 141-168. <http://eudml.org/doc/267835>.
@article{O1964, author = {O. Karwowski}, journal = {Annales Polonici Mathematici}, keywords = {differential geometric Euclidean spaces}, language = {eng}, number = {2}, pages = {141-168}, title = {Vertical lines and points of a surface}, url = {http://eudml.org/doc/267835}, volume = {14}, year = {1964}, }
TY - JOUR AU - O. Karwowski TI - Vertical lines and points of a surface JO - Annales Polonici Mathematici PY - 1964 VL - 14 IS - 2 SP - 141 EP - 168 LA - eng KW - differential geometric Euclidean spaces UR - http://eudml.org/doc/267835 ER -