@article{MR_1974__1_a161,
     author = {T. \ensuremath{\Pi}\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\rho}\ensuremath{\acute\omega}\ensuremath{\nu}\ensuremath{\eta}\ensuremath{\varsigma} and  \ensuremath{\Pi}. X\ensuremath{\rho}\ensuremath{\iota}\ensuremath{\sigma}\ensuremath{\tau}o\ensuremath{\varphi}\'{o}\ensuremath{\rho}o\ensuremath{\upsilon}},
     title = {\ensuremath{\Sigma}\ensuremath{\kappa}\ensuremath{\varepsilon}\ensuremath{\varphi}\ensuremath{\tau}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\tau}\ensuremath{\varepsilon} \ensuremath{\kappa}\ensuremath{\alpha}\ensuremath{\iota} {A\ensuremath{\pi}\ensuremath{\alpha}\ensuremath{\nu}\ensuremath{\tau}\ensuremath{\acute\eta}\ensuremath{\sigma}\ensuremath{\tau}\ensuremath{\varepsilon}} {\ensuremath{\Sigma}\ensuremath{\acute\upsilon}\ensuremath{\nu}o\ensuremath{\lambda}\ensuremath{\alpha}} \ensuremath{\kappa}\ensuremath{\alpha}\ensuremath{\iota} {A\ensuremath{\nu}\ensuremath{\tau}\ensuremath{\iota}\ensuremath{\sigma}\ensuremath{\tau}o\ensuremath{\iota}\ensuremath{\chi}\ensuremath{\acute\iota}\ensuremath{\varepsilon}\ensuremath{\varsigma}}},
     journal = {M\ensuremath{\alpha}\ensuremath{\theta}\ensuremath{\eta}\ensuremath{\mu}\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\acute\eta} E\ensuremath{\pi}\ensuremath{\iota}\ensuremath{\theta}\ensuremath{\varepsilon}\ensuremath{\acute\omega}\ensuremath{\rho}\ensuremath{\eta}\ensuremath{\sigma}\ensuremath{\eta}
},
     pages = {9-11},
     publisher = {mathdoc},
     volume = {1},
     year = {1974},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_1974__1_a161/}
}