@article{MR_1980__18_a12,
     author = {K. Z\ensuremath{\acute\omega}\ensuremath{\eta}\ensuremath{\varsigma}},
     title = {\ensuremath{\Gamma}\ensuremath{\iota}\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\acute\iota} {\ensuremath{\Delta}\ensuremath{\iota}\ensuremath{\delta}\ensuremath{\acute\alpha}\ensuremath{\sigma}\ensuremath{\kappa}o\ensuremath{\nu}\ensuremath{\tau}\ensuremath{\alpha}\ensuremath{\iota}} \ensuremath{\tau}\ensuremath{\alpha} {M\ensuremath{\alpha}\ensuremath{\theta}\ensuremath{\eta}\ensuremath{\mu}\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\acute\alpha}} {(K\ensuremath{\alpha}\ensuremath{\iota}} \ensuremath{\pi}o\ensuremath{\upsilon} \ensuremath{\pi}\ensuremath{\rho}\ensuremath{\acute\epsilon}\ensuremath{\pi}\ensuremath{\varepsilon}\ensuremath{\iota} \ensuremath{\nu}\ensuremath{\alpha} \ensuremath{\sigma}\ensuremath{\tau}o\ensuremath{\chi}\ensuremath{\varepsilon}\ensuremath{\acute\upsilon}\ensuremath{\varepsilon}\ensuremath{\iota} \ensuremath{\eta} \ensuremath{\delta}\ensuremath{\iota}\ensuremath{\delta}\ensuremath{\alpha}\ensuremath{\sigma}\ensuremath{\kappa}\ensuremath{\alpha}\ensuremath{\lambda}\ensuremath{\acute\iota}\ensuremath{\alpha} \ensuremath{\tau}o\ensuremath{\upsilon}\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 = {53-56},
     publisher = {mathdoc},
     volume = {18},
     year = {1980},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_1980__18_a12/}
}