Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{CMUC_1964__5_3_a4, author = {Havel, V\'aclav}, title = {Die {\v{C}echschen} {Kollineationen} eines {Fl\"achenpaares}}, journal = {Commentationes Mathematicae Universitatis Carolinae}, pages = {133--143}, publisher = {mathdoc}, volume = {05}, number = {3}, year = {1964}, mrnumber = {0172198}, zbl = {0127.38201}, language = {ge}, url = {http://geodesic.mathdoc.fr/item/CMUC_1964__5_3_a4/} }
Havel, Václav. Die Čechschen Kollineationen eines Flächenpaares. Commentationes Mathematicae Universitatis Carolinae, Tome 05 (1964) no. 3, pp. 133-143. http://geodesic.mathdoc.fr/item/CMUC_1964__5_3_a4/