@article{MR_1975_2_a158,
     author = { },
     title = {M\ensuremath{\acute\epsilon}\ensuremath{\tau}\ensuremath{\rho}\ensuremath{\eta}\ensuremath{\sigma}\ensuremath{\eta} \ensuremath{\acute\eta} \ensuremath{\mu}o\ensuremath{\nu}\ensuremath{\acute\alpha}\ensuremath{\delta}\ensuremath{\varepsilon}\ensuremath{\varsigma} \ensuremath{\mu}\ensuremath{\acute\epsilon}\ensuremath{\tau}\ensuremath{\rho}\ensuremath{\eta}\ensuremath{\sigma}\ensuremath{\eta}\ensuremath{\varsigma}. {(A\ensuremath{\pi}\'{o}} \ensuremath{\tau}\ensuremath{\eta}\ensuremath{\nu} \ensuremath{\alpha}\ensuremath{\rho}\ensuremath{\chi}\ensuremath{\alpha}\ensuremath{\iota}\'{o}\ensuremath{\tau}\ensuremath{\eta}\ensuremath{\tau}\ensuremath{\alpha} \ensuremath{\mu}\ensuremath{\acute\epsilon}\ensuremath{\chi}\ensuremath{\rho}\ensuremath{\iota} \ensuremath{\sigma}\ensuremath{\acute\eta}\ensuremath{\mu}\ensuremath{\varepsilon}\ensuremath{\rho}\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 = {14--17},
     year = {1975},
     volume = {2},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_1975_2_a158/}
}