@article{EUG_2001_56_a2,
     author = {\ensuremath{\Delta}\ensuremath{\eta}\ensuremath{\mu}\ensuremath{\acute\eta}\ensuremath{\tau}\ensuremath{\rho}\ensuremath{\eta}\ensuremath{\varsigma} \ensuremath{\Gamma}\ensuremath{\alpha}\ensuremath{\beta}\ensuremath{\alpha}\ensuremath{\lambda}\ensuremath{\acute\alpha}\ensuremath{\varsigma}},
     title = {H \ensuremath{\tau}\ensuremath{\varepsilon}\ensuremath{\tau}\ensuremath{\rho}\ensuremath{\alpha}\ensuremath{\pi}\ensuremath{\lambda}\ensuremath{\acute\eta} \'{o}\ensuremath{\psi}\ensuremath{\eta} \ensuremath{\tau}\ensuremath{\eta}\ensuremath{\varsigma} \ensuremath{\sigma}\ensuremath{\upsilon}\ensuremath{\nu}\ensuremath{\acute\alpha}\ensuremath{\rho}\ensuremath{\tau}\ensuremath{\eta}\ensuremath{\sigma}\ensuremath{\eta}\ensuremath{\varsigma}},
     journal = {E\ensuremath{\upsilon}\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\ensuremath{\varsigma} \ensuremath{\Gamma}},
     pages = {5--19},
     year = {2001},
     volume = {56},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/EUG_2001_56_a2/}
}