@article{MR_1977_5_a64,
     author = {K\ensuremath{\acute\omega}\ensuremath{\sigma}\ensuremath{\tau}\ensuremath{\alpha}\ensuremath{\varsigma} T\ensuremath{\sigma}\ensuremath{\alpha}\ensuremath{\mu}\ensuremath{\alpha}\ensuremath{\delta}\ensuremath{\iota}\ensuremath{\acute\alpha}\ensuremath{\varsigma}},
     title = {\ensuremath{\Theta}\ensuremath{\acute\epsilon}\ensuremath{\mu}\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\alpha} \ensuremath{\alpha}\ensuremath{\pi}\'{o} \ensuremath{\tau}\ensuremath{\iota}\ensuremath{\varsigma} {\ensuremath{\Gamma}\ensuremath{\alpha}\ensuremath{\lambda}\ensuremath{\lambda}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\acute\epsilon}\ensuremath{\varsigma}} \ensuremath{\varepsilon}\ensuremath{\xi}\ensuremath{\varepsilon}\ensuremath{\tau}\ensuremath{\acute\alpha}\ensuremath{\sigma}\ensuremath{\varepsilon}\ensuremath{\iota}\ensuremath{\varsigma} \ensuremath{\gamma}\ensuremath{\iota}\ensuremath{\alpha} \ensuremath{\tau}o \ensuremath{\lambda}\ensuremath{\acute\upsilon}\ensuremath{\kappa}\ensuremath{\varepsilon}\ensuremath{\iota}o },
     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 = {150--152159},
     year = {1977},
     volume = {5},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_1977_5_a64/}
}