Voir la notice de l'article provenant de la source Hellenic Digital Mathematics Library
@article{EUG_1983__1_a4, author = {\ensuremath{\Pi}\ensuremath{\alpha}\ensuremath{\nu}\ensuremath{\alpha}\ensuremath{\gamma}\ensuremath{\iota}\ensuremath{\acute\omega}\ensuremath{\tau}\ensuremath{\eta}\ensuremath{\varsigma} X\ensuremath{\rho}\ensuremath{\iota}\ensuremath{\sigma}\ensuremath{\tau}o\ensuremath{\varphi}\'{o}\ensuremath{\rho}o\ensuremath{\upsilon}}, title = {B΄T\ensuremath{\acute\alpha}\ensuremath{\xi}\ensuremath{\eta}. {\ensuremath{\Gamma}\ensuremath{\iota}\ensuremath{\alpha}} \ensuremath{\tau}o \ensuremath{\kappa}\ensuremath{\alpha}\ensuremath{\rho}\ensuremath{\tau}\ensuremath{\varepsilon}\ensuremath{\sigma}\ensuremath{\iota}\ensuremath{\alpha}\ensuremath{\nu}\'{o} \ensuremath{\gamma}\ensuremath{\iota}\ensuremath{\nu}\'{o}\ensuremath{\mu}\ensuremath{\varepsilon}\ensuremath{\nu}o.}, journal = {E\ensuremath{\upsilon}\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\ensuremath{\varsigma} \ensuremath{\Gamma} }, pages = {12-14}, publisher = {mathdoc}, volume = {1}, year = {1983}, language = {gr}, url = {http://geodesic.mathdoc.fr/item/EUG_1983__1_a4/} }
Παναγιώτης Χριστοφόρου. Β΄Τάξη. Για το καρτεσιανό γινόμενο.. Ευκλείδης Γ , Tome 1 (1983), p. 12-14. http://geodesic.mathdoc.fr/item/EUG_1983__1_a4/