@article{MR_1990_37_a14,
     author = {\ensuremath{\Lambda}. I\ensuremath{\omega}\ensuremath{\sigma}\ensuremath{\acute\eta}\ensuremath{\varphi} and  \ensuremath{\Lambda}. \ensuremath{\Pi}\ensuremath{\alpha}\ensuremath{\pi}\ensuremath{\alpha}\ensuremath{\kappa}\ensuremath{\omega}\ensuremath{\nu}\ensuremath{\sigma}\ensuremath{\tau}\ensuremath{\alpha}\ensuremath{\nu}\ensuremath{\tau}\ensuremath{\iota}\ensuremath{\nu}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\ensuremath{\varsigma}},
     title = {\ensuremath{\Pi}\ensuremath{\alpha}\ensuremath{\rho}\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\acute\eta}\ensuremath{\rho}\ensuremath{\eta}\ensuremath{\sigma}\ensuremath{\eta} \ensuremath{\sigma}\ensuremath{\varepsilon} \ensuremath{\acute\epsilon}\ensuremath{\nu}\ensuremath{\alpha} \'{o}\ensuremath{\rho}\ensuremath{\iota}o},
     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 = {40--41},
     year = {1990},
     volume = {37},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_1990_37_a14/}
}