@article{EUA_1989-1990__3_a130, author = {X. \ensuremath{\Delta}\ensuremath{\acute\alpha}\ensuremath{\tau}\ensuremath{\sigma}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\alpha}\ensuremath{\varsigma}}, title = {E\ensuremath{\pi}\ensuremath{\iota}\ensuremath{\varphi}\ensuremath{\acute\alpha}\ensuremath{\nu}\ensuremath{\varepsilon}\ensuremath{\iota}\ensuremath{\alpha} - {E\ensuremath{\mu}\ensuremath{\beta}\ensuremath{\alpha}\ensuremath{\delta}\'{o}@}}, journal = {E\ensuremath{\upsilon}\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\ensuremath{\varsigma} A }, pages = {22-24}, publisher = {mathdoc}, volume = {3}, year = {1989-1990}, language = {gr}, url = {http://geodesic.mathdoc.fr/item/EUA_1989-1990__3_a130/} }