Voir la notice de l'article provenant de la source Hellenic Digital Mathematics Library
@article{MR_1978__11_a18, author = {K. \ensuremath{\Gamma}\ensuremath{\alpha}\ensuremath{\beta}\ensuremath{\rho}\ensuremath{\acute\iota}\ensuremath{\lambda}\ensuremath{\eta}\ensuremath{\varsigma}}, title = {H \ensuremath{\sigma}\ensuremath{\upsilon}\ensuremath{\mu}\ensuremath{\mu}\ensuremath{\varepsilon}\ensuremath{\tau}\ensuremath{\rho}\ensuremath{\acute\iota}\ensuremath{\alpha}}, 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 = {20-22}, publisher = {mathdoc}, volume = {11}, year = {1978}, language = {gr}, url = {http://geodesic.mathdoc.fr/item/MR_1978__11_a18/} }
Κ. Γαβρίλης. Η συμμετρία. Μαθηματική Επιθεώρηση , Tome 11 (1978), p. 20-22. http://geodesic.mathdoc.fr/item/MR_1978__11_a18/