@article{EU_1975-1976_3_a66,
     author = {B. \ensuremath{\Pi}o\ensuremath{\lambda}\ensuremath{\upsilon}\ensuremath{\delta}o\ensuremath{\acute\upsilon}\ensuremath{\rho}\ensuremath{\eta}\ensuremath{\varsigma} and  \ensuremath{\Pi}. M\ensuremath{\alpha}\ensuremath{\rho}o\ensuremath{\upsilon}\ensuremath{\sigma}\ensuremath{\acute\alpha}\ensuremath{\kappa}\ensuremath{\eta}\ensuremath{\varsigma} and  \ensuremath{\Sigma}. Bo\ensuremath{\gamma}\ensuremath{\iota}\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\zeta}\ensuremath{\acute\eta}\ensuremath{\varsigma}},
     title = {\ensuremath{\Gamma}\ensuremath{\iota}\ensuremath{\alpha} \ensuremath{\tau}\ensuremath{\eta}\ensuremath{\nu} {\'{}A} {T\ensuremath{\acute\alpha}\ensuremath{\xi}\ensuremath{\eta}.} {A\ensuremath{\xi}o\ensuremath{\nu}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\acute\eta}} {\ensuremath{\Sigma}\ensuremath{\upsilon}\ensuremath{\mu}\ensuremath{\mu}\ensuremath{\varepsilon}\ensuremath{\tau}\ensuremath{\rho}\ensuremath{\acute\iota}\ensuremath{\alpha}.} \ensuremath{\kappa}.\ensuremath{\lambda}.\ensuremath{\pi}.},
     journal = {E\ensuremath{\upsilon}\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\ensuremath{\varsigma}},
     pages = {86--94},
     year = {1975-1976},
     volume = {3},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/EU_1975-1976_3_a66/}
}