@article{MR_1975_3_a29,
     author = {T. T\ensuremath{\zeta}o\ensuremath{\upsilon}\ensuremath{\mu}\ensuremath{\acute\alpha}\ensuremath{\kappa}\ensuremath{\alpha}},
     title = {\'{}E\ensuremath{\nu}\ensuremath{\alpha}\ensuremath{\varsigma} \ensuremath{\sigma}\ensuremath{\upsilon}\ensuremath{\sigma}\ensuremath{\tau}\ensuremath{\eta}\ensuremath{\mu}\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\iota}\ensuremath{\kappa}\'{o}\ensuremath{\varsigma} \ensuremath{\delta}\ensuremath{\iota}\ensuremath{\acute\alpha}\ensuremath{\lambda}o\ensuremath{\gamma}o\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 = {29--31},
     year = {1975},
     volume = {3},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_1975_3_a29/}
}