@article{MR_2002__58_a7,
     author = {K. \ensuremath{\Sigma}o\ensuremath{\upsilon}\ensuremath{\rho}\ensuremath{\lambda}\ensuremath{\acute\alpha}\ensuremath{\varsigma} and  \ensuremath{\Gamma}. Ko\ensuremath{\nu}\ensuremath{\tau}o\ensuremath{\gamma}\ensuremath{\iota}\ensuremath{\acute\alpha}\ensuremath{\nu}\ensuremath{\nu}\ensuremath{\eta}\ensuremath{\varsigma} and  \ensuremath{\Phi}. \ensuremath{\Phi}o\ensuremath{\upsilon}\ensuremath{\rho}\ensuremath{\nu}\ensuremath{\alpha}\ensuremath{\rho}\ensuremath{\acute\alpha}\ensuremath{\kappa}\ensuremath{\eta}\ensuremath{\varsigma}},
     title = {X\ensuremath{\alpha}\ensuremath{\rho}\ensuremath{\alpha}\ensuremath{\kappa}\ensuremath{\tau}\ensuremath{\eta}\ensuremath{\rho}\ensuremath{\iota}\ensuremath{\sigma}\ensuremath{\tau}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\acute\alpha} \ensuremath{\tau}\ensuremath{\eta}\ensuremath{\varsigma} \ensuremath{\mu}\ensuremath{\alpha}\ensuremath{\theta}\ensuremath{\eta}\ensuremath{\mu}\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\acute\eta}\ensuremath{\varsigma} \ensuremath{\gamma}\ensuremath{\lambda}\ensuremath{\acute\omega}\ensuremath{\sigma}\ensuremath{\sigma}\ensuremath{\alpha}\ensuremath{\varsigma}.},
     journal = {M\ensuremath{\alpha}\ensuremath{\theta}\ensuremath{\eta}\ensuremath{\mu}\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\acute\eta} E\ensuremath{\pi}\ensuremath{\iota}\ensuremath{\theta}\ensuremath{\varepsilon}\ensuremath{\acute\omega}\ensuremath{\rho}\ensuremath{\eta}\ensuremath{\sigma}\ensuremath{\eta}
},
     pages = {35-55},
     publisher = {mathdoc},
     volume = {58},
     year = {2002},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_2002__58_a7/}
}