@article{MR_2001_55_a1,
     author = {N\ensuremath{\iota}\ensuremath{\kappa}\'{o}\ensuremath{\lambda}\ensuremath{\alpha}o\ensuremath{\varsigma} Z\ensuremath{\alpha}\ensuremath{\varphi}\ensuremath{\varepsilon}\ensuremath{\iota}\ensuremath{\rho}\'{o}\ensuremath{\pi}o\ensuremath{\upsilon}\ensuremath{\lambda}o\ensuremath{\varsigma}},
     title = {E\ensuremath{\varphi}\ensuremath{\alpha}\ensuremath{\rho}\ensuremath{\mu}o\ensuremath{\gamma}\ensuremath{\acute\epsilon}\ensuremath{\varsigma} \ensuremath{\mu}\ensuremath{\iota}\ensuremath{\alpha}\ensuremath{\varsigma} {B\ensuremath{\alpha}\ensuremath{\sigma}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\acute\eta}\ensuremath{\varsigma}} {\ensuremath{\Sigma}\ensuremath{\chi}\ensuremath{\acute\epsilon}\ensuremath{\sigma}\ensuremath{\eta}\ensuremath{\varsigma}} \ensuremath{\tau}\ensuremath{\eta}\ensuremath{\varsigma} {T\ensuremath{\alpha}\ensuremath{\nu}\ensuremath{\upsilon}\ensuremath{\sigma}\ensuremath{\tau}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\acute\eta}\ensuremath{\varsigma}} {\'{}A\ensuremath{\lambda}\ensuremath{\gamma}\ensuremath{\varepsilon}\ensuremath{\beta}\ensuremath{\rho}\ensuremath{\alpha}\ensuremath{\varsigma}} {II}},
     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 = {127--133},
     year = {2001},
     volume = {55},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_2001_55_a1/}
}