@article{MR_1974__1_a55,
     author = {\ensuremath{\Delta}\ensuremath{\iota}o\ensuremath{\nu}\ensuremath{\upsilon}\ensuremath{\sigma}\ensuremath{\acute\iota}\ensuremath{\alpha} K\ensuremath{\alpha}\ensuremath{\kappa}o\ensuremath{\lambda}o\ensuremath{\acute\iota}\ensuremath{\rho}\ensuremath{\eta}},
     title = {O\ensuremath{\iota} {\ensuremath{\Pi}\ensuremath{\acute\iota}\ensuremath{\nu}\ensuremath{\alpha}\ensuremath{\kappa}\ensuremath{\varepsilon}\ensuremath{\varsigma}} \ensuremath{\kappa}\ensuremath{\alpha}\ensuremath{\iota} o\ensuremath{\iota} {\ensuremath{\Pi}\ensuremath{\rho}\ensuremath{\acute\alpha}\ensuremath{\xi}\ensuremath{\varepsilon}\ensuremath{\iota}\ensuremath{\varsigma}} \ensuremath{\tau}o\ensuremath{\upsilon}\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 = {65-70},
     publisher = {mathdoc},
     volume = {1},
     year = {1974},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_1974__1_a55/}
}