@article{EUG_1991_30-31_a8,
     author = {\ensuremath{\Sigma}. M\ensuremath{\acute\alpha}\ensuremath{\kappa}\ensuremath{\rho}\ensuremath{\alpha}\ensuremath{\varsigma}},
     title = {O\ensuremath{\lambda}o\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\acute\eta}\ensuremath{\rho}\ensuremath{\omega}\ensuremath{\mu}\ensuremath{\alpha} \ensuremath{\kappa}\ensuremath{\alpha}\ensuremath{\iota} {\ensuremath{\Pi}\ensuremath{\alpha}\ensuremath{\rho}\ensuremath{\acute\alpha}\ensuremath{\gamma}o\ensuremath{\upsilon}\ensuremath{\sigma}\ensuremath{\varepsilon}\ensuremath{\varsigma}}},
     journal = {E\ensuremath{\upsilon}\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\ensuremath{\varsigma} \ensuremath{\Gamma}},
     pages = {147--156},
     year = {1991},
     volume = {30-31},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/EUG_1991_30-31_a8/}
}