@article{MR_1992_38_a29,
     author = {H\ensuremath{\lambda}\ensuremath{\acute\iota}\ensuremath{\alpha}\ensuremath{\varsigma} \ensuremath{\Lambda}\ensuremath{\upsilon}\ensuremath{\pi}\ensuremath{\iota}\ensuremath{\tau}\ensuremath{\acute\alpha}\ensuremath{\kappa}\ensuremath{\eta}\ensuremath{\varsigma}},
     title = {M\ensuremath{\alpha}\ensuremath{\theta}\ensuremath{\eta}\ensuremath{\mu}\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\acute\alpha} \ensuremath{\kappa}\ensuremath{\alpha}\ensuremath{\iota} {\ensuremath{\Pi}\ensuremath{\lambda}\ensuremath{\eta}\ensuremath{\rho}o\ensuremath{\varphi}o\ensuremath{\rho}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\acute\eta}:} {\'{}A\ensuremath{\lambda}\ensuremath{\gamma}\ensuremath{\varepsilon}\ensuremath{\beta}\ensuremath{\rho}\ensuremath{\alpha}} {\ensuremath{\Upsilon}\ensuremath{\pi}o\ensuremath{\lambda}o\ensuremath{\gamma}\ensuremath{\iota}\ensuremath{\sigma}\ensuremath{\tau}\ensuremath{\acute\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 = {58--71},
     year = {1992},
     volume = {38},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_1992_38_a29/}
}