@article{MR_1975_3_a23,
     author = {\ensuremath{\Delta}. M\ensuremath{\pi}o\ensuremath{\upsilon}\ensuremath{\nu}\ensuremath{\acute\alpha}\ensuremath{\kappa}\ensuremath{\eta}\ensuremath{\varsigma}},
     title = {\ensuremath{\Pi}\ensuremath{\alpha}\ensuremath{\rho}\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\eta}\ensuremath{\rho}\ensuremath{\acute\eta}\ensuremath{\sigma}\ensuremath{\varepsilon}\ensuremath{\iota}\ensuremath{\varsigma} \ensuremath{\sigma}\ensuremath{\varepsilon} \ensuremath{\acute\epsilon}\ensuremath{\nu}\ensuremath{\alpha} \ensuremath{\theta}\ensuremath{\acute\epsilon}\ensuremath{\mu}\ensuremath{\alpha} \ensuremath{\alpha}\ensuremath{\pi}\'{o} \ensuremath{\tau}o\ensuremath{\nu} {\ensuremath{\Pi}\ensuremath{\alpha}\ensuremath{\nu}\ensuremath{\varepsilon}\ensuremath{\lambda}\ensuremath{\lambda}\ensuremath{\acute\eta}\ensuremath{\nu}\ensuremath{\iota}o} {\ensuremath{\Delta}\ensuremath{\iota}\ensuremath{\alpha}\ensuremath{\gamma}\ensuremath{\omega}\ensuremath{\nu}\ensuremath{\iota}\ensuremath{\sigma}\ensuremath{\mu}\'{o}} {M\ensuremath{\alpha}\ensuremath{\theta}\ensuremath{\eta}\ensuremath{\mu}\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\iota}\ensuremath{\kappa}\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 = {13--14},
     year = {1975},
     volume = {3},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_1975_3_a23/}
}