@article{EUA_1992-1993_7_a23,
     author = {\ensuremath{\Gamma}. \ensuremath{\Omega}\ensuremath{\rho}\ensuremath{\alpha}\ensuremath{\iota}\'{o}\ensuremath{\pi}o\ensuremath{\upsilon}\ensuremath{\lambda}o\ensuremath{\varsigma}},
     title = {\ensuremath{\Pi}\ensuremath{\rho}o\ensuremath{\beta}\ensuremath{\lambda}\ensuremath{\acute\eta}\ensuremath{\mu}\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\alpha} \ensuremath{\mu}\ensuremath{\varepsilon} \ensuremath{\sigma}\ensuremath{\upsilon}\ensuremath{\mu}\ensuremath{\mu}\ensuremath{\varepsilon}\ensuremath{\tau}\ensuremath{\alpha}\ensuremath{\beta}\ensuremath{\lambda}\ensuremath{\eta}\ensuremath{\tau}\ensuremath{\acute\alpha} \ensuremath{\pi}o\ensuremath{\sigma}\ensuremath{\acute\alpha}},
     journal = {E\ensuremath{\upsilon}\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\ensuremath{\varsigma} A},
     pages = {21--24},
     year = {1992-1993},
     volume = {7},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/EUA_1992-1993_7_a23/}
}