@article{MR_1974_1_a29,
     author = {K\ensuremath{\upsilon}\ensuremath{\rho}\ensuremath{\acute\alpha}\ensuremath{\nu}\ensuremath{\alpha}\ensuremath{\varsigma} \ensuremath{\Pi}\ensuremath{\alpha}\ensuremath{\nu}\ensuremath{\alpha}\ensuremath{\gamma}\ensuremath{\iota}\ensuremath{\acute\omega}\ensuremath{\tau}\ensuremath{\eta}\ensuremath{\varsigma}},
     title = {\ensuremath{\Gamma}\ensuremath{\iota}\ensuremath{\alpha} \ensuremath{\tau}o\ensuremath{\upsilon}\ensuremath{\varsigma} {\'{}A\ensuremath{\rho}\ensuremath{\rho}\ensuremath{\eta}\ensuremath{\tau}o\ensuremath{\upsilon}\ensuremath{\varsigma}} {A\ensuremath{\rho}\ensuremath{\iota}\ensuremath{\theta}\ensuremath{\mu}o\ensuremath{\acute\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 = {21--24},
     year = {1974},
     volume = {1},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_1974_1_a29/}
}