@article{MR_1978_11_a17,
     author = {T\ensuremath{\acute\alpha}\ensuremath{\kappa}\ensuremath{\eta}\ensuremath{\varsigma} \ensuremath{\Pi}o\ensuremath{\lambda}\ensuremath{\acute\upsilon}\ensuremath{\delta}\ensuremath{\omega}\ensuremath{\rho}o\ensuremath{\varsigma}},
     title = {M\ensuremath{\acute\epsilon}\ensuremath{\sigma}\ensuremath{\eta} \ensuremath{\tau}\ensuremath{\iota}\ensuremath{\mu}\ensuremath{\acute\eta} - {\ensuremath{\Delta}\ensuremath{\iota}\ensuremath{\acute\alpha}\ensuremath{\mu}\ensuremath{\varepsilon}\ensuremath{\sigma}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 = {18--22},
     year = {1978},
     volume = {11},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_1978_11_a17/}
}