Voir la notice de l'article provenant de la source Hellenic Digital Mathematics Library
@article{EUG_1984__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 = {E\ensuremath{\upsilon}\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\ensuremath{\varsigma} \ensuremath{\Gamma} }, pages = {13-17}, publisher = {mathdoc}, volume = {3}, year = {1984}, language = {gr}, url = {http://geodesic.mathdoc.fr/item/EUG_1984__3_a142/} }
Κ. Γαβρίλης. Οι κάθετες ευθείες. Ευκλείδης Γ , Tome 3 (1984), p. 13-17. http://geodesic.mathdoc.fr/item/EUG_1984__3_a142/