@article{MR_1975__2_a37, author = {\ensuremath{\Delta}. X\ensuremath{\alpha}\ensuremath{\sigma}\ensuremath{\acute\alpha}\ensuremath{\pi}\ensuremath{\eta}\ensuremath{\varsigma}}, title = {O \ensuremath{\alpha}\ensuremath{\rho}\ensuremath{\theta}\ensuremath{\mu}\'{o}\ensuremath{\varsigma} \ensuremath{\pi}}, 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 = {73-95}, publisher = {mathdoc}, volume = {2}, year = {1975}, language = {gr}, url = {http://geodesic.mathdoc.fr/item/MR_1975__2_a37/} }