@article{MR_1975_2_a40,
     author = {\ensuremath{\Gamma}. \ensuremath{\Delta}. B\ensuremath{\alpha}\ensuremath{\lambda}\ensuremath{\tau}\ensuremath{\acute\alpha}\ensuremath{\varsigma}},
     title = {T\ensuremath{\acute\alpha}\ensuremath{\xi}\ensuremath{\eta} {B} {\ensuremath{\Gamma}\ensuremath{\upsilon}\ensuremath{\mu}\ensuremath{\nu}\ensuremath{\alpha}\ensuremath{\sigma}\ensuremath{\acute\iota}o\ensuremath{\upsilon}.} {To} {B΄} {K\ensuremath{\varepsilon}\ensuremath{\varphi}\ensuremath{\acute\alpha}\ensuremath{\lambda}\ensuremath{\alpha}\ensuremath{\iota}o} : {I\ensuremath{\sigma}\'{o}\ensuremath{\tau}\ensuremath{\eta}\ensuremath{\tau}\ensuremath{\alpha}} \ensuremath{\tau}\ensuremath{\rho}\ensuremath{\iota}\ensuremath{\gamma}\ensuremath{\acute\omega}\ensuremath{\nu}o\ensuremath{\upsilon}. {A\ensuremath{\pi}\'{o}\ensuremath{\psi}\ensuremath{\varepsilon}\ensuremath{\iota}\ensuremath{\varsigma}} \ensuremath{\varepsilon}\ensuremath{\nu}\'{o}\ensuremath{\varsigma} \ensuremath{\sigma}\ensuremath{\upsilon}\ensuremath{\nu}\ensuremath{\alpha}\ensuremath{\delta}\ensuremath{\acute\epsilon}\ensuremath{\lambda}\ensuremath{\varphi}o\ensuremath{\upsilon} \ensuremath{\gamma}\ensuremath{\iota}\ensuremath{\alpha} \ensuremath{\tau}\ensuremath{\eta} \ensuremath{\delta}\ensuremath{\iota}\ensuremath{\delta}\ensuremath{\alpha}\ensuremath{\sigma}\ensuremath{\kappa}\ensuremath{\alpha}\ensuremath{\lambda}\ensuremath{\acute\iota}\ensuremath{\alpha} \ensuremath{\tau}o\ensuremath{\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 = {67--98},
     year = {1975},
     volume = {2},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_1975_2_a40/}
}