@article{EUA_1976-1977_03_a4,
     author = {\ensuremath{\Delta}. \ensuremath{\Lambda}\ensuremath{\iota}\ensuremath{\beta}\ensuremath{\acute\epsilon}\ensuremath{\rho}\ensuremath{\eta}\ensuremath{\varsigma}},
     title = {A\ensuremath{\kappa}\ensuremath{\acute\epsilon}\ensuremath{\rho}\ensuremath{\alpha}\ensuremath{\iota}\ensuremath{\varepsilon}\ensuremath{\varsigma} \ensuremath{\lambda}\ensuremath{\acute\upsilon}\ensuremath{\sigma}\ensuremath{\varepsilon}\ensuremath{\iota}\ensuremath{\varsigma} \ensuremath{\tau}\ensuremath{\eta}\ensuremath{\varsigma} \ensuremath{\varepsilon}\ensuremath{\xi}\ensuremath{\iota}\ensuremath{\sigma}\ensuremath{\acute\omega}\ensuremath{\sigma}\ensuremath{\varepsilon}\ensuremath{\omega}\ensuremath{\varsigma}},
     journal = {E\ensuremath{\upsilon}\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\ensuremath{\varsigma} A},
     pages = {19--21},
     year = {1976-1977},
     volume = {03},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/EUA_1976-1977_03_a4/}
}