@article{MR_1998_49-50_a4,
     author = {\ensuremath{\Pi}. B\ensuremath{\lambda}\ensuremath{\acute\alpha}\ensuremath{\mu}o\ensuremath{\varsigma}},
     title = {\ensuremath{\Pi}\ensuremath{\rho}\'{o}\ensuremath{\tau}\ensuremath{\alpha}\ensuremath{\sigma}\ensuremath{\eta} \ensuremath{\theta}\ensuremath{\varepsilon}\ensuremath{\mu}\ensuremath{\acute\alpha}\ensuremath{\tau}\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} \ensuremath{\mu}\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}} , {\ensuremath{\Pi}\ensuremath{\rho}o\ensuremath{\varepsilon}\ensuremath{\tau}o\ensuremath{\iota}\ensuremath{\mu}\ensuremath{\alpha}\ensuremath{\sigma}\ensuremath{\acute\iota}\ensuremath{\alpha}} {O\ensuremath{\lambda}\ensuremath{\upsilon}\ensuremath{\mu}\ensuremath{\pi}\ensuremath{\iota}\ensuremath{\alpha}\ensuremath{\kappa}\ensuremath{\acute\omega}\ensuremath{\nu}} {O\ensuremath{\mu}\ensuremath{\acute\alpha}\ensuremath{\delta}\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 = {161--183},
     year = {1998},
     volume = {49-50},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_1998_49-50_a4/}
}