@article{MR_1974__1_a72,
     author = { },
     title = {T\ensuremath{\acute\iota} \ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\nu}\ensuremath{\alpha}\ensuremath{\iota} \ensuremath{\alpha}\ensuremath{\upsilon}\ensuremath{\tau}\'{o} \ensuremath{\pi}o\ensuremath{\upsilon} \ensuremath{\lambda}\ensuremath{\acute\epsilon}\ensuremath{\mu}\ensuremath{\varepsilon} \ensuremath{\alpha}\ensuremath{\pi}\'{o}\ensuremath{\delta}\ensuremath{\varepsilon}\ensuremath{\iota}\ensuremath{\xi}\ensuremath{\eta}},
     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 = {2-4},
     publisher = {mathdoc},
     volume = {1},
     year = {1974},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_1974__1_a72/}
}