@article{MR_1976_4_a4,
     author = {N\ensuremath{\acute\iota}\ensuremath{\kappa}o\ensuremath{\varsigma} X\ensuremath{\rho}\ensuremath{\eta}\ensuremath{\sigma}\ensuremath{\tau}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\ensuremath{\varsigma}},
     title = {\ensuremath{\Gamma}΄T\ensuremath{\acute\alpha}\ensuremath{\xi}\ensuremath{\eta}. {\ensuremath{\Sigma}\ensuremath{\tau}o\ensuremath{\iota}\ensuremath{\chi}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\alpha}} \ensuremath{\gamma}\ensuremath{\rho}\ensuremath{\alpha}\ensuremath{\mu}\ensuremath{\mu}\ensuremath{\iota}\ensuremath{\kappa}o\ensuremath{\acute\upsilon} \ensuremath{\pi}\ensuremath{\rho}o\ensuremath{\gamma}\ensuremath{\rho}\ensuremath{\alpha}\ensuremath{\mu}\ensuremath{\mu}\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\iota}\ensuremath{\sigma}\ensuremath{\mu}o\ensuremath{\acute\upsilon}.},
     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 = {27--32},
     year = {1976},
     volume = {4},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_1976_4_a4/}
}