@article{MR_1978_12_a19,
     author = {\ensuremath{\Sigma}. \ensuremath{\Gamma}\ensuremath{\varepsilon}\ensuremath{\omega}\ensuremath{\rho}\ensuremath{\gamma}\ensuremath{\acute\iota}o\ensuremath{\upsilon}},
     title = {E\ensuremath{\mu}\ensuremath{\beta}\ensuremath{\alpha}\ensuremath{\delta}\'{o} \ensuremath{\tau}\ensuremath{\rho}\ensuremath{\alpha}\ensuremath{\pi}\ensuremath{\varepsilon}\ensuremath{\zeta}\ensuremath{\acute\iota}o\ensuremath{\upsilon} \ensuremath{\kappa}\ensuremath{\alpha}\ensuremath{\iota} \ensuremath{\alpha}\ensuremath{\sigma}\ensuremath{\kappa}\ensuremath{\acute\eta}\ensuremath{\sigma}\ensuremath{\varepsilon}\ensuremath{\iota}\ensuremath{\varsigma} \ensuremath{\sigma}\ensuremath{\tau}\ensuremath{\alpha} \ensuremath{\varepsilon}\ensuremath{\mu}\ensuremath{\beta}\ensuremath{\alpha}\ensuremath{\delta}\ensuremath{\acute\alpha} \ensuremath{\varepsilon}\ensuremath{\pi}\ensuremath{\iota}\ensuremath{\pi}\ensuremath{\acute\epsilon}\ensuremath{\delta}\ensuremath{\omega}\ensuremath{\nu} \ensuremath{\varepsilon}\ensuremath{\pi}\ensuremath{\iota}\ensuremath{\varphi}\ensuremath{\alpha}\ensuremath{\nu}\ensuremath{\varepsilon}\ensuremath{\iota}\ensuremath{\acute\omega}\ensuremath{\nu}},
     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 = {12--13},
     year = {1978},
     volume = {12},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_1978_12_a19/}
}