@article{EU_1975-1976_3_a120,
     author = {T\ensuremath{\acute\alpha}\ensuremath{\sigma}o\ensuremath{\varsigma} \ensuremath{\Pi}\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\rho}\ensuremath{\acute\omega}\ensuremath{\nu}\ensuremath{\eta}\ensuremath{\varsigma} and  B. \ensuremath{\Gamma}\ensuremath{\iota}\ensuremath{\alpha}\ensuremath{\nu}\ensuremath{\nu}\ensuremath{\alpha}\ensuremath{\kappa}\'{o}\ensuremath{\pi}o\ensuremath{\upsilon}\ensuremath{\lambda}o\ensuremath{\varsigma} and  N\ensuremath{\acute\iota}\ensuremath{\kappa}\ensuremath{\eta} \ensuremath{\Pi}\ensuremath{\acute\alpha}\ensuremath{\lambda}\ensuremath{\lambda}\ensuremath{\alpha}},
     title = {_\ensuremath{\Gamma}\ensuremath{\iota}\ensuremath{\alpha} \ensuremath{\tau}\ensuremath{\eta} {\ensuremath{\Gamma}} \ensuremath{\tau}\ensuremath{\acute\alpha}\ensuremath{\xi}\ensuremath{\eta}_},
     journal = {E\ensuremath{\upsilon}\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\ensuremath{\varsigma}},
     pages = {82--90},
     year = {1975-1976},
     volume = {3},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/EU_1975-1976_3_a120/}
}