@article{MR_1986_30_a15,
     author = {N\ensuremath{\acute\iota}\ensuremath{\kappa}o\ensuremath{\varsigma} X\ensuremath{\rho}\ensuremath{\eta}\ensuremath{\sigma}\ensuremath{\tau}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\ensuremath{\varsigma}},
     title = {To \ensuremath{\alpha}\ensuremath{\nu}\ensuremath{\alpha}\ensuremath{\lambda}\ensuremath{\upsilon}\ensuremath{\tau}\ensuremath{\iota}\ensuremath{\kappa}\'{o} {\ensuremath{\Pi}\ensuremath{\rho}\'{o}\ensuremath{\gamma}\ensuremath{\rho}\ensuremath{\alpha}\ensuremath{\mu}\ensuremath{\mu}\ensuremath{\alpha}} \ensuremath{\tau}o\ensuremath{\upsilon} \ensuremath{\mu}\ensuremath{\acute\epsilon}\ensuremath{\lambda}\ensuremath{\lambda}o\ensuremath{\nu}\ensuremath{\tau}o\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 = {20--31},
     year = {1986},
     volume = {30},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_1986_30_a15/}
}