Voir la notice de l'article provenant de la source Hellenic Digital Mathematics Library
@article{MR_1975__3_a142, author = {K. \ensuremath{\Gamma}\ensuremath{\alpha}\ensuremath{\beta}\ensuremath{\rho}\ensuremath{\acute\iota}\ensuremath{\lambda}\ensuremath{\eta}\ensuremath{\varsigma}}, title = {O\ensuremath{\iota} \ensuremath{\kappa}\ensuremath{\acute\alpha}\ensuremath{\theta}\ensuremath{\varepsilon}\ensuremath{\tau}\ensuremath{\varepsilon}\ensuremath{\varsigma} \ensuremath{\varepsilon}\ensuremath{\upsilon}\ensuremath{\theta}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\varepsilon}\ensuremath{\varsigma}}, 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 = {13-17}, publisher = {mathdoc}, volume = {3}, year = {1975}, language = {gr}, url = {http://geodesic.mathdoc.fr/item/MR_1975__3_a142/} }
Κ. Γαβρίλης. Οι κάθετες ευθείες. Μαθηματική Επιθεώρηση , Tome 3 (1975), p. 13-17. http://geodesic.mathdoc.fr/item/MR_1975__3_a142/