@article{MR_1977__6_a6,
     author = { },
     title = {B\ensuremath{\rho}\ensuremath{\alpha}\ensuremath{\beta}\ensuremath{\varepsilon}\ensuremath{\acute\iota}o {E\ensuremath{\upsilon}\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\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 = {4-6},
     publisher = {mathdoc},
     volume = {6},
     year = {1977},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_1977__6_a6/}
}