@article{MR_1975_3_a49,
     author = {A\ensuremath{\nu}\ensuremath{\alpha}\ensuremath{\sigma}\ensuremath{\tau}\ensuremath{\acute\alpha}\ensuremath{\sigma}\ensuremath{\iota}o\ensuremath{\varsigma} \ensuremath{\Pi}\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\rho}\ensuremath{\acute\omega}\ensuremath{\nu}\ensuremath{\eta}\ensuremath{\varsigma} and  K\ensuremath{\alpha}\ensuremath{\sigma}o\ensuremath{\kappa}\ensuremath{\varepsilon}\ensuremath{\rho}\ensuremath{\acute\alpha}\ensuremath{\kappa}\ensuremath{\eta} M\ensuremath{\alpha}\ensuremath{\rho}\ensuremath{\acute\iota}\ensuremath{\alpha} and  A\ensuremath{\nu}\ensuremath{\delta}\ensuremath{\rho}\ensuremath{\acute\epsilon}\ensuremath{\alpha}\ensuremath{\varsigma} T\ensuremath{\rho}\ensuremath{\iota}\ensuremath{\alpha}\ensuremath{\nu}\ensuremath{\tau}\ensuremath{\alpha}\ensuremath{\varphi}\ensuremath{\acute\upsilon}\ensuremath{\lambda}\ensuremath{\lambda}o\ensuremath{\upsilon}},
     title = {\ensuremath{\Gamma}\ensuremath{\iota}\ensuremath{\alpha} \ensuremath{\tau}\ensuremath{\eta}\ensuremath{\nu} {B΄T\ensuremath{\acute\alpha}\ensuremath{\xi}\ensuremath{\eta}.} {\ensuremath{\Lambda}\ensuremath{\acute\upsilon}\ensuremath{\sigma}\ensuremath{\eta}} \ensuremath{\mu}\ensuremath{\varepsilon}\ensuremath{\rho}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\acute\omega}\ensuremath{\nu} \ensuremath{\alpha}\ensuremath{\sigma}\ensuremath{\kappa}\ensuremath{\acute\eta}\ensuremath{\sigma}\ensuremath{\varepsilon}\ensuremath{\omega}\ensuremath{\nu} \ensuremath{\alpha}\ensuremath{\pi}\'{o} \ensuremath{\tau}\ensuremath{\alpha} \ensuremath{\pi}\ensuremath{\rho}o\ensuremath{\eta}\ensuremath{\gamma}o\ensuremath{\acute\upsilon}\ensuremath{\mu}\ensuremath{\varepsilon}\ensuremath{\nu}\ensuremath{\alpha} \ensuremath{\tau}\ensuremath{\varepsilon}\ensuremath{\acute\upsilon}\ensuremath{\chi}\ensuremath{\eta}.},
     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 = {11--17},
     year = {1975},
     volume = {3},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_1975_3_a49/}
}