@article{MR_1999_51_a12,
     author = {A. O\ensuremath{\iota}\ensuremath{\kappa}o\ensuremath{\nu}\'{o}\ensuremath{\mu}o\ensuremath{\upsilon} and  \ensuremath{\Pi}. B\ensuremath{\lambda}\ensuremath{\acute\alpha}\ensuremath{\mu}o\ensuremath{\varsigma} and  E. B\ensuremath{\lambda}\ensuremath{\acute\alpha}\ensuremath{\mu}o\ensuremath{\upsilon} and  E. P\ensuremath{\acute\alpha}\ensuremath{\pi}\ensuremath{\pi}o\ensuremath{\varsigma} and  \ensuremath{\Pi}. \ensuremath{\Psi}\ensuremath{\alpha}\ensuremath{\rho}\ensuremath{\rho}\ensuremath{\acute\alpha}\ensuremath{\kappa}o\ensuremath{\varsigma}},
     title = {\ensuremath{\Delta}\ensuremath{\iota}\ensuremath{\alpha}\ensuremath{\mu}\ensuremath{\varepsilon}\ensuremath{\rho}\ensuremath{\acute\iota}\ensuremath{\sigma}\ensuremath{\varepsilon}\ensuremath{\iota}\ensuremath{\varsigma} {A\ensuremath{\kappa}\ensuremath{\varepsilon}\ensuremath{\rho}\ensuremath{\alpha}\ensuremath{\acute\iota}\ensuremath{\omega}\ensuremath{\nu}} \ensuremath{\sigma}\ensuremath{\varepsilon} {\ensuremath{\Delta}\ensuremath{\iota}\ensuremath{\varepsilon}\ensuremath{\theta}\ensuremath{\nu}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\varsigma}} {M\ensuremath{\alpha}\ensuremath{\theta}\ensuremath{\eta}\ensuremath{\mu}\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\acute\epsilon}\ensuremath{\varsigma}} {O\ensuremath{\lambda}\ensuremath{\upsilon}\ensuremath{\mu}\ensuremath{\pi}\ensuremath{\iota}\ensuremath{\acute\alpha}\ensuremath{\delta}\ensuremath{\varepsilon}\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 = {113--129},
     year = {1999},
     volume = {51},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_1999_51_a12/}
}