@article{MR_1976_4_a19,
     author = {\ensuremath{\Sigma}\ensuremath{\tau}\ensuremath{\acute\alpha}\ensuremath{\mu}\ensuremath{\eta} T\ensuremath{\sigma}\ensuremath{\iota}\ensuremath{\kappa}o\ensuremath{\pi}o\ensuremath{\acute\upsilon}\ensuremath{\lambda}o\ensuremath{\upsilon}},
     title = {K\ensuremath{\acute\alpha}\ensuremath{\lambda}\ensuremath{\upsilon}\ensuremath{\psi}\ensuremath{\eta} \ensuremath{\varepsilon}\ensuremath{\pi}\ensuremath{\iota}\ensuremath{\pi}\ensuremath{\acute\epsilon}\ensuremath{\delta}o\ensuremath{\upsilon} \ensuremath{\mu}\ensuremath{\varepsilon} \ensuremath{\kappa}\ensuremath{\alpha}\ensuremath{\nu}o\ensuremath{\nu}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\acute\alpha} \ensuremath{\pi}o\ensuremath{\lambda}\ensuremath{\acute\upsilon}\ensuremath{\gamma}\ensuremath{\omega}\ensuremath{\nu}\ensuremath{\alpha}},
     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 = {26--28},
     year = {1976},
     volume = {4},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_1976_4_a19/}
}