@article{MR_1974_1_a88,
     author = { },
     title = {To \ensuremath{\varphi}\ensuremath{\varepsilon}\ensuremath{\gamma}\ensuremath{\gamma}\ensuremath{\acute\alpha}\ensuremath{\rho}\ensuremath{\iota} \ensuremath{\kappa}\ensuremath{\alpha}\ensuremath{\iota} \ensuremath{\tau}o \ensuremath{\chi}\ensuremath{\eta}\ensuremath{\nu}\ensuremath{\acute\alpha}\ensuremath{\rho}\ensuremath{\iota} \ensuremath{\sigma}\ensuremath{\tau}o\ensuremath{\nu} \ensuremath{\pi}\ensuremath{\lambda}\ensuremath{\alpha}\ensuremath{\nu}\ensuremath{\acute\eta}\ensuremath{\tau}\ensuremath{\eta} {\ensuremath{\Sigma}o\ensuremath{\lambda}\ensuremath{\acute\alpha}\ensuremath{\rho}\ensuremath{\iota}\ensuremath{\varsigma}}},
     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 = {28--31},
     year = {1974},
     volume = {1},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_1974_1_a88/}
}