@article{EUG_1984_3_a156,
     author = {\ensuremath{\Gamma}. \ensuremath{\Omega}\ensuremath{\rho}\ensuremath{\alpha}\ensuremath{\iota}\'{o}\ensuremath{\pi}o\ensuremath{\upsilon}\ensuremath{\lambda}o\ensuremath{\varsigma}},
     title = {H \ensuremath{\kappa}\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\acute\alpha}\ensuremath{\kappa}\ensuremath{\tau}\ensuremath{\eta}\ensuremath{\sigma}\ensuremath{\eta} \ensuremath{\tau}o\ensuremath{\upsilon} {\ensuremath{\Delta}\ensuremath{\iota}\ensuremath{\alpha}\ensuremath{\sigma}\ensuremath{\tau}\ensuremath{\acute\eta}\ensuremath{\mu}\ensuremath{\alpha}\ensuremath{\tau}o\ensuremath{\varsigma}}},
     journal = {E\ensuremath{\upsilon}\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\ensuremath{\varsigma} \ensuremath{\Gamma}},
     pages = {4--5},
     year = {1984},
     volume = {3},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/EUG_1984_3_a156/}
}