@article{DEME_1989_30_a15,
     author = {N\ensuremath{\acute\iota}\ensuremath{\kappa}o\ensuremath{\varsigma} X\ensuremath{\rho}\ensuremath{\eta}\ensuremath{\sigma}\ensuremath{\tau}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\ensuremath{\varsigma}},
     title = {To \ensuremath{\alpha}\ensuremath{\nu}\ensuremath{\alpha}\ensuremath{\lambda}\ensuremath{\upsilon}\ensuremath{\tau}\ensuremath{\iota}\ensuremath{\kappa}\'{o} {\ensuremath{\Pi}\ensuremath{\rho}\'{o}\ensuremath{\gamma}\ensuremath{\rho}\ensuremath{\alpha}\ensuremath{\mu}\ensuremath{\mu}\ensuremath{\alpha}} \ensuremath{\tau}o\ensuremath{\upsilon} \ensuremath{\mu}\ensuremath{\acute\epsilon}\ensuremath{\lambda}\ensuremath{\lambda}o\ensuremath{\nu}\ensuremath{\tau}o\ensuremath{\varsigma}.},
     journal = {\ensuremath{\Delta}\ensuremath{\varepsilon}\ensuremath{\lambda}\ensuremath{\tau}\ensuremath{\acute\iota}o \ensuremath{\tau}\ensuremath{\eta}\ensuremath{\varsigma} E\ensuremath{\lambda}\ensuremath{\lambda}\ensuremath{\eta}\ensuremath{\nu}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\acute\eta}\ensuremath{\varsigma} M\ensuremath{\alpha}\ensuremath{\theta}\ensuremath{\eta}\ensuremath{\mu}\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\acute\eta}\ensuremath{\varsigma} E\ensuremath{\tau}\ensuremath{\alpha}\ensuremath{\iota}\ensuremath{\rho}\ensuremath{\acute\iota}\ensuremath{\alpha}\ensuremath{\varsigma}},
     pages = {20--31},
     year = {1989},
     volume = {30},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/DEME_1989_30_a15/}
}