Voir la notice de l'article provenant de la source Hellenic Digital Mathematics Library
@article{MR_1979__15_a15, author = {Grigorios Tsagas}, title = {On the {Surfaces} {Whose} {Normal} {Bundles} {Have} {Special} {Properties}}, journal = {M\ensuremath{\alpha}\ensuremath{\theta}\ensuremath{\eta}\ensuremath{\mu}\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\acute\eta} E\ensuremath{\pi}\ensuremath{\iota}\ensuremath{\theta}\ensuremath{\varepsilon}\ensuremath{\acute\omega}\ensuremath{\rho}\ensuremath{\eta}\ensuremath{\sigma}\ensuremath{\eta} }, pages = {59-67}, publisher = {mathdoc}, volume = {15}, year = {1979}, language = {gr}, url = {http://geodesic.mathdoc.fr/item/MR_1979__15_a15/} }
Grigorios Tsagas. On the Surfaces Whose Normal Bundles Have Special Properties. Μαθηματική Επιθεώρηση , Tome 15 (1979), p. 59-67. http://geodesic.mathdoc.fr/item/MR_1979__15_a15/