Voir la notice de l'article provenant de la source Hellenic Digital Mathematics Library
@article{EU_1973-1974__10_a0, author = {\ensuremath{\Sigma}\ensuremath{\tau}\ensuremath{\acute\epsilon}\ensuremath{\lambda}\ensuremath{\iota}o\ensuremath{\varsigma} \ensuremath{\Pi}\ensuremath{\alpha}\ensuremath{\pi}\ensuremath{\alpha}\ensuremath{\varphi}\ensuremath{\lambda}\ensuremath{\omega}\ensuremath{\rho}\ensuremath{\acute\alpha}\ensuremath{\tau}o\ensuremath{\varsigma}}, title = {E\ensuremath{\xi}\ensuremath{\omega}\ensuremath{\varepsilon}\ensuremath{\upsilon}\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\iota}o\ensuremath{\nu} \ensuremath{\mu}o\ensuremath{\nu}\ensuremath{\tau}\ensuremath{\acute\epsilon}\ensuremath{\lambda}o}, journal = {E\ensuremath{\upsilon}\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\ensuremath{\varsigma} }, pages = {10-12}, publisher = {mathdoc}, volume = {10}, year = {1973-1974}, language = {gr}, url = {http://geodesic.mathdoc.fr/item/EU_1973-1974__10_a0/} }
Στέλιος Παπαφλωράτος. Εξωευκλείδιον μοντέλο. Ευκλείδης , Tome 10 (1973-1974), p. 10-12. http://geodesic.mathdoc.fr/item/EU_1973-1974__10_a0/