@article{EUG_1990_25_a21,
     author = {M\ensuremath{\alpha}\ensuremath{\rho}\ensuremath{\iota}\ensuremath{\acute\alpha}\ensuremath{\nu}\ensuremath{\nu}\ensuremath{\alpha} T\ensuremath{\zeta}\ensuremath{\varepsilon}\ensuremath{\kappa}\ensuremath{\acute\alpha}\ensuremath{\kappa}\ensuremath{\eta}},
     title = {\ensuremath{\Upsilon}\ensuremath{\pi}o\ensuremath{\lambda}o\ensuremath{\gamma}\ensuremath{\iota}\ensuremath{\sigma}\ensuremath{\tau}\ensuremath{\acute\eta}\ensuremath{\varsigma}, {E\ensuremath{\rho}\ensuremath{\gamma}\ensuremath{\alpha}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\iota}o} {\ensuremath{\Sigma}\ensuremath{\tau}\ensuremath{\acute\eta}\ensuremath{\rho}\ensuremath{\iota}\ensuremath{\xi}\ensuremath{\eta}\ensuremath{\varsigma}} \ensuremath{\tau}\ensuremath{\eta}\ensuremath{\varsigma} {\ensuremath{\Delta}\ensuremath{\iota}\ensuremath{\delta}\ensuremath{\alpha}\ensuremath{\sigma}\ensuremath{\kappa}\ensuremath{\alpha}\ensuremath{\lambda}\ensuremath{\acute\iota}\ensuremath{\alpha}\ensuremath{\varsigma}} \ensuremath{\tau}\ensuremath{\omega}\ensuremath{\nu} {M\ensuremath{\alpha}\ensuremath{\theta}\ensuremath{\eta}\ensuremath{\mu}\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\acute\omega}\ensuremath{\nu}.}},
     journal = {E\ensuremath{\upsilon}\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\ensuremath{\varsigma} \ensuremath{\Gamma}},
     pages = {66--82},
     year = {1990},
     volume = {25},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/EUG_1990_25_a21/}
}