@article{MR_1978_10_a22,
     author = {\ensuremath{\Sigma}. T\ensuremath{\sigma}\ensuremath{\iota}\ensuremath{\kappa}o\ensuremath{\pi}o\ensuremath{\acute\upsilon}\ensuremath{\lambda}o\ensuremath{\upsilon}},
     title = {To {\ensuremath{\Pi}\ensuremath{\upsilon}\ensuremath{\theta}\ensuremath{\alpha}\ensuremath{\gamma}\'{o}\ensuremath{\rho}\ensuremath{\varepsilon}\ensuremath{\iota}o} \ensuremath{\theta}\ensuremath{\varepsilon}\ensuremath{\acute\omega}\ensuremath{\rho}\ensuremath{\eta}\ensuremath{\mu}\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 = {21--23},
     year = {1978},
     volume = {10},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_1978_10_a22/}
}