@article{EU_1973-1974_10_a21,
     author = {\ensuremath{\Lambda}. K\ensuremath{\alpha}\ensuremath{\pi}\ensuremath{\varepsilon}\ensuremath{\tau}\ensuremath{\alpha}\ensuremath{\nu}\ensuremath{\acute\alpha}\ensuremath{\varsigma}},
     title = {\ensuremath{\Pi}\'{o}\ensuremath{\sigma}o \ensuremath{\tau}o\ensuremath{\iota}\ensuremath{\varsigma} \ensuremath{\varepsilon}\ensuremath{\kappa}\ensuremath{\alpha}\ensuremath{\tau}\'{o} ;},
     journal = {E\ensuremath{\upsilon}\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\ensuremath{\varsigma}},
     pages = {17--19},
     year = {1973-1974},
     volume = {10},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/EU_1973-1974_10_a21/}
}