@article{MR_1978_9_a7,
     author = {\ensuremath{\Pi}. M\ensuremath{\alpha}\ensuremath{\rho}o\ensuremath{\upsilon}\ensuremath{\sigma}\ensuremath{\acute\alpha}\ensuremath{\kappa}\ensuremath{\eta}\ensuremath{\varsigma}},
     title = {To \ensuremath{\sigma}\ensuremath{\chi}\ensuremath{\acute\eta}\ensuremath{\mu}\ensuremath{\alpha} \ensuremath{\kappa}\ensuremath{\alpha}\ensuremath{\iota} \ensuremath{\mu}\ensuremath{\acute\epsilon}\ensuremath{\gamma}\ensuremath{\varepsilon}\ensuremath{\theta}o\ensuremath{\varsigma} \ensuremath{\varepsilon}\ensuremath{\upsilon}\ensuremath{\theta}\ensuremath{\upsilon}\ensuremath{\gamma}\ensuremath{\rho}\ensuremath{\acute\alpha}\ensuremath{\mu}\ensuremath{\mu}o\ensuremath{\upsilon} \ensuremath{\tau}\ensuremath{\mu}\ensuremath{\acute\eta}\ensuremath{\mu}\ensuremath{\alpha}\ensuremath{\tau}o\ensuremath{\varsigma} \ensuremath{\kappa}\ensuremath{\alpha}\ensuremath{\iota} \ensuremath{\gamma}\ensuremath{\omega}\ensuremath{\nu}\ensuremath{\acute\iota}\ensuremath{\alpha}\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 = {1--7},
     year = {1978},
     volume = {9},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_1978_9_a7/}
}