@article{DEME_1997__39_a21,
     author = {\ensuremath{\Delta}. Ko\ensuremath{\nu}\ensuremath{\tau}o\ensuremath{\gamma}\ensuremath{\iota}\ensuremath{\acute\alpha}\ensuremath{\nu}\ensuremath{\nu}\ensuremath{\eta}\ensuremath{\varsigma} and  B. N\ensuremath{\tau}\ensuremath{\zeta}\ensuremath{\iota}\ensuremath{\alpha}\ensuremath{\chi}\ensuremath{\rho}\ensuremath{\acute\eta}\ensuremath{\sigma}\ensuremath{\tau}o\ensuremath{\varsigma}},
     title = {O \ensuremath{\upsilon}\ensuremath{\pi}o\ensuremath{\lambda}o\ensuremath{\gamma}\ensuremath{\iota}\ensuremath{\sigma}\ensuremath{\mu}\'{o}\ensuremath{\varsigma} \ensuremath{\tau}o\ensuremath{\upsilon} \ensuremath{\varepsilon}\ensuremath{\mu}\ensuremath{\beta}\ensuremath{\alpha}\ensuremath{\delta}o\ensuremath{\acute\upsilon} \ensuremath{\kappa}\ensuremath{\upsilon}\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\iota}\ensuremath{\kappa}o\ensuremath{\acute\upsilon} \ensuremath{\delta}\ensuremath{\acute\iota}\ensuremath{\sigma}\ensuremath{\kappa}o\ensuremath{\upsilon}},
     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 = {71-83},
     publisher = {mathdoc},
     volume = {39},
     year = {1997},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/DEME_1997__39_a21/}
}