Voir la notice de l'article provenant de la source Hellenic Digital Mathematics Library
@article{EUG_1983__1_a25, author = { }, title = {H \ensuremath{\pi}\ensuremath{\rho}\'{o}\ensuremath{\sigma}\ensuremath{\theta}\ensuremath{\varepsilon}\ensuremath{\sigma}\ensuremath{\eta} \ensuremath{\kappa}\ensuremath{\alpha}\ensuremath{\iota} \ensuremath{\eta} \ensuremath{\alpha}\ensuremath{\varphi}\ensuremath{\alpha}\ensuremath{\acute\iota}\ensuremath{\rho}\ensuremath{\varepsilon}\ensuremath{\sigma}\ensuremath{\eta}.}, journal = {E\ensuremath{\upsilon}\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\ensuremath{\varsigma} \ensuremath{\Gamma} }, pages = {10-12}, publisher = {mathdoc}, volume = {1}, year = {1983}, language = {gr}, url = {http://geodesic.mathdoc.fr/item/EUG_1983__1_a25/} }
. Η πρόσθεση και η αφαίρεση.. Ευκλείδης Γ , Tome 1 (1983), p. 10-12. http://geodesic.mathdoc.fr/item/EUG_1983__1_a25/