@article{MR_1992__38_a27, author = {M\ensuremath{\iota}\ensuremath{\chi}\ensuremath{\acute\alpha}\ensuremath{\lambda}\ensuremath{\eta}\ensuremath{\varsigma} M\ensuremath{\upsilon}\ensuremath{\tau}\ensuremath{\iota}\ensuremath{\lambda}\ensuremath{\eta}\ensuremath{\nu}\ensuremath{\alpha}\ensuremath{\acute\iota}o\ensuremath{\varsigma}}, title = {O {H\ensuremath{\rho}\ensuremath{\alpha}\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\acute\eta}\ensuremath{\varsigma}} \ensuremath{\kappa}\ensuremath{\alpha}\ensuremath{\iota} \ensuremath{\eta} {\'{}Y\ensuremath{\delta}\ensuremath{\rho}\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 = {39-51}, publisher = {mathdoc}, volume = {38}, year = {1992}, language = {gr}, url = {http://geodesic.mathdoc.fr/item/MR_1992__38_a27/} }