@article{MR_1978_12_a6,
     author = {K\ensuremath{\acute\omega}\ensuremath{\sigma}\ensuremath{\tau}\ensuremath{\alpha}\ensuremath{\varsigma} \ensuremath{\Delta}\ensuremath{\rho}\'{o}\ensuremath{\sigma}o\ensuremath{\varsigma}},
     title = {T\ensuremath{\upsilon}\ensuremath{\chi}\ensuremath{\alpha}\ensuremath{\acute\iota}\ensuremath{\alpha} {\ensuremath{\Delta}\ensuremath{\iota}\ensuremath{\alpha}\ensuremath{\nu}\ensuremath{\acute\upsilon}\ensuremath{\sigma}\ensuremath{\mu}\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\alpha}:} {\ensuremath{\Pi}\ensuremath{\rho}o\ensuremath{\sigma}\ensuremath{\acute\epsilon}\ensuremath{\gamma}\ensuremath{\gamma}\ensuremath{\iota}\ensuremath{\sigma}\ensuremath{\eta}} {E\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\upsilon}\ensuremath{\theta}\ensuremath{\varepsilon}\ensuremath{\rho}\ensuremath{\eta}} {\ensuremath{\Sigma}\ensuremath{\upsilon}\ensuremath{\nu}\ensuremath{\tau}\ensuremath{\varepsilon}\ensuremath{\tau}\ensuremath{\alpha}\ensuremath{\gamma}\ensuremath{\mu}\ensuremath{\acute\epsilon}\ensuremath{\nu}\ensuremath{\omega}\ensuremath{\nu}}},
     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 = {125--160},
     year = {1978},
     volume = {12},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_1978_12_a6/}
}