@article{EU_1974-1975_02_a22,
     author = {X. K\ensuremath{\iota}\ensuremath{\sigma}\ensuremath{\kappa}\ensuremath{\acute\upsilon}\ensuremath{\rho}\ensuremath{\alpha}\ensuremath{\varsigma} and  \ensuremath{\Delta}\ensuremath{\eta}\ensuremath{\mu}\ensuremath{\acute\eta}\ensuremath{\tau}\ensuremath{\rho}\ensuremath{\eta}\ensuremath{\varsigma} X\ensuremath{\alpha}\ensuremath{\sigma}\ensuremath{\acute\alpha}\ensuremath{\pi}\ensuremath{\eta}\ensuremath{\varsigma} and  M. \ensuremath{\Delta}\ensuremath{\acute\alpha}\ensuremath{\nu}\ensuremath{\iota}\ensuremath{\alpha}\ensuremath{\varsigma} and  Z\ensuremath{\omega}\ensuremath{\ddot\iota}\ensuremath{\tau}o\ensuremath{\pi}o\ensuremath{\acute\upsilon}\ensuremath{\lambda}o\ensuremath{\upsilon} M. and  \ensuremath{\Sigma}\ensuremath{\tau}\ensuremath{\alpha}\ensuremath{\mu}\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\acute\alpha}\ensuremath{\varsigma} N.},
     title = {\ensuremath{\Gamma}΄T\ensuremath{\acute\alpha}\ensuremath{\xi}\ensuremath{\eta} {\ensuremath{\Gamma}\ensuremath{\upsilon}\ensuremath{\mu}\ensuremath{\nu}\ensuremath{\alpha}\ensuremath{\sigma}\ensuremath{\acute\iota}o\ensuremath{\upsilon}-----------------.}},
     journal = {E\ensuremath{\upsilon}\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\ensuremath{\varsigma}},
     pages = {24--30},
     year = {1974-1975},
     volume = {02},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/EU_1974-1975_02_a22/}
}