@article{MR_1997_47_a12,
     author = {E\ensuremath{\upsilon}\ensuremath{\acute\alpha}\ensuremath{\gamma}\ensuremath{\gamma}\ensuremath{\varepsilon}\ensuremath{\lambda}o\ensuremath{\varsigma} M\ensuremath{\alpha}\ensuremath{\rho}\ensuremath{\iota}\ensuremath{\nu}\ensuremath{\acute\alpha}\ensuremath{\kappa}\ensuremath{\eta}\ensuremath{\varsigma}},
     title = {M\ensuremath{\varepsilon}\ensuremath{\lambda}\ensuremath{\acute\epsilon}\ensuremath{\tau}\ensuremath{\eta} \ensuremath{\varepsilon}\ensuremath{\pi}\ensuremath{\acute\alpha}\ensuremath{\nu}\ensuremath{\omega} \ensuremath{\sigma}\ensuremath{\tau}\ensuremath{\alpha} \ensuremath{\pi}\ensuremath{\alpha}\ensuremath{\rho}\ensuremath{\acute\alpha}\ensuremath{\delta}o\ensuremath{\xi}\ensuremath{\alpha} \ensuremath{\tau}\ensuremath{\eta}\ensuremath{\varsigma} \ensuremath{\kappa}\ensuremath{\acute\iota}\ensuremath{\nu}\ensuremath{\eta}\ensuremath{\sigma}\ensuremath{\eta}\ensuremath{\varsigma} \ensuremath{\tau}o\ensuremath{\upsilon} {Z\ensuremath{\acute\eta}\ensuremath{\nu}\ensuremath{\omega}\ensuremath{\nu}\ensuremath{\alpha}} \ensuremath{\tau}o\ensuremath{\upsilon} {E\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\alpha}\ensuremath{\tau}\ensuremath{\eta}}},
     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 = {64--78},
     year = {1997},
     volume = {47},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_1997_47_a12/}
}