@article{MR_2002__58_a9,
     author = {\ensuremath{\Gamma}. \ensuremath{\Delta}\ensuremath{\eta}\ensuremath{\mu}\ensuremath{\acute\alpha}\ensuremath{\kappa}o\ensuremath{\varsigma} and  A. \ensuremath{\Delta}o\ensuremath{\acute\upsilon}\ensuremath{\nu}\ensuremath{\alpha}\ensuremath{\beta}\ensuremath{\eta}\ensuremath{\varsigma}},
     title = {H \ensuremath{\alpha}\ensuremath{\nu}\ensuremath{\alpha}\ensuremath{\kappa}\ensuremath{\acute\alpha}\ensuremath{\lambda}\ensuremath{\upsilon}\ensuremath{\psi}\ensuremath{\eta} \ensuremath{\kappa}\ensuremath{\alpha}\ensuremath{\iota} o \ensuremath{\rho}\'{o}\ensuremath{\lambda}o\ensuremath{\varsigma} \ensuremath{\tau}o\ensuremath{\upsilon} \ensuremath{\varphi}\ensuremath{\alpha}\ensuremath{\iota}\ensuremath{\nu}o\ensuremath{\mu}\ensuremath{\acute\epsilon}\ensuremath{\nu}o\ensuremath{\upsilon} \ensuremath{\tau}\ensuremath{\eta}\ensuremath{\varsigma} {A\ensuremath{\sigma}\ensuremath{\sigma}\ensuremath{\upsilon}\ensuremath{\mu}\ensuremath{\varepsilon}\ensuremath{\tau}\ensuremath{\rho}\'{o}\ensuremath{\tau}\ensuremath{\eta}\ensuremath{\tau}\ensuremath{\alpha}\ensuremath{\varsigma}.} {\ensuremath{\Sigma}\ensuremath{\tau}\'{o}\ensuremath{\chi}o\ensuremath{\varsigma}} \ensuremath{\kappa}\ensuremath{\alpha}\ensuremath{\iota} \ensuremath{\sigma}\ensuremath{\kappa}o\ensuremath{\pi}\'{o}\ensuremath{\varsigma} \ensuremath{\tau}o\ensuremath{\upsilon} \ensuremath{\beta}\ensuremath{\iota}\ensuremath{\beta}\ensuremath{\lambda}\ensuremath{\acute\iota}o\ensuremath{\upsilon} {X} \ensuremath{\tau}\ensuremath{\omega}\ensuremath{\nu} \ensuremath{\sigma}\ensuremath{\tau}o\ensuremath{\iota}\ensuremath{\chi}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\omega}\ensuremath{\nu}.},
     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 = {69-79},
     publisher = {mathdoc},
     volume = {58},
     year = {2002},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_2002__58_a9/}
}