@article{MR_1990_37_a11,
     author = {N. A\ensuremath{\pi}o\ensuremath{\sigma}\ensuremath{\tau}o\ensuremath{\lambda}\ensuremath{\acute\alpha}\ensuremath{\tau}o\ensuremath{\varsigma}},
     title = {H \ensuremath{\pi}\ensuremath{\lambda}\ensuremath{\eta}\ensuremath{\rho}o\ensuremath{\varphi}o\ensuremath{\rho}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\acute\eta} \ensuremath{\kappa}\ensuremath{\alpha}\ensuremath{\theta}o\ensuremath{\rho}\ensuremath{\acute\iota}\ensuremath{\zeta}\ensuremath{\varepsilon}\ensuremath{\iota} \ensuremath{\tau}\ensuremath{\eta} \ensuremath{\delta}o\ensuremath{\mu}\ensuremath{\acute\eta} \'{o}\ensuremath{\lambda}\ensuremath{\omega}\ensuremath{\nu} \ensuremath{\tau}\ensuremath{\omega}\ensuremath{\nu} {E\ensuremath{\pi}\ensuremath{\iota}\ensuremath{\sigma}\ensuremath{\tau}\ensuremath{\eta}\ensuremath{\mu}\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 = {1--10},
     year = {1990},
     volume = {37},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_1990_37_a11/}
}