@article{EUG_1984_3_a12,
     author = {X. \ensuremath{\Delta}\ensuremath{\acute\alpha}\ensuremath{\tau}\ensuremath{\sigma}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\alpha}\ensuremath{\varsigma}},
     title = {T\ensuremath{\alpha} \ensuremath{\tau}\ensuremath{\rho}\ensuremath{\acute\iota}\ensuremath{\gamma}\ensuremath{\omega}\ensuremath{\nu}\ensuremath{\alpha} \ensuremath{\kappa}\ensuremath{\alpha}\ensuremath{\iota} \ensuremath{\eta} \ensuremath{\iota}\ensuremath{\sigma}\'{o}\ensuremath{\tau}\ensuremath{\eta}\ensuremath{\tau}\ensuremath{\alpha} \ensuremath{\tau}o\ensuremath{\upsilon}\ensuremath{\varsigma}},
     journal = {E\ensuremath{\upsilon}\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\ensuremath{\varsigma} \ensuremath{\Gamma}},
     pages = {28--30},
     year = {1984},
     volume = {3},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/EUG_1984_3_a12/}
}