@article{EUG_1990__27_a23,
     author = {A\ensuremath{\pi}\'{o}\ensuremath{\sigma}\ensuremath{\tau}o\ensuremath{\lambda}o\ensuremath{\varsigma} I. X\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\zeta}\ensuremath{\eta}\ensuremath{\gamma}\ensuremath{\varepsilon}\ensuremath{\omega}\ensuremath{\rho}\ensuremath{\gamma}\ensuremath{\acute\iota}o\ensuremath{\upsilon}},
     title = {H {\ensuremath{\Pi}\ensuremath{\rho}\'{o}\ensuremath{\sigma}\ensuremath{\theta}\ensuremath{\varepsilon}\ensuremath{\sigma}\ensuremath{\eta}} \ensuremath{\kappa}\ensuremath{\alpha}\ensuremath{\iota} \ensuremath{\eta} {A\ensuremath{\varphi}\ensuremath{\alpha}\ensuremath{\acute\iota}\ensuremath{\rho}\ensuremath{\varepsilon}\ensuremath{\sigma}\ensuremath{\eta}} \ensuremath{\sigma}\ensuremath{\tau}o\ensuremath{\upsilon}\ensuremath{\varsigma} {A\ensuremath{\kappa}\ensuremath{\varepsilon}\ensuremath{\rho}\ensuremath{\alpha}\ensuremath{\acute\iota}o\ensuremath{\upsilon}\ensuremath{\varsigma}.} {\ensuremath{\Delta}\ensuremath{\upsilon}\ensuremath{\sigma}\ensuremath{\kappa}o\ensuremath{\lambda}\ensuremath{\acute\iota}\ensuremath{\varepsilon}\ensuremath{\varsigma}} \ensuremath{\kappa}\ensuremath{\alpha}\ensuremath{\iota} {\ensuremath{\Lambda}\ensuremath{\acute\alpha}\ensuremath{\theta}\ensuremath{\eta}} \ensuremath{\tau}\ensuremath{\omega}\ensuremath{\nu} {M\ensuremath{\alpha}\ensuremath{\theta}\ensuremath{\eta}\ensuremath{\tau}\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 = {8-24},
     publisher = {mathdoc},
     volume = {27},
     year = {1990},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/EUG_1990__27_a23/}
}