@article{DEME_1975_16_a10,
     author = {  and  SING-SHEN CHERN},
     title = {A\ensuremath{\pi}\'{o} \ensuremath{\tau}\ensuremath{\alpha} {T\ensuremath{\rho}\ensuremath{\acute\iota}\ensuremath{\gamma}\ensuremath{\omega}\ensuremath{\nu}\ensuremath{\alpha}} \ensuremath{\sigma}\ensuremath{\tau}\ensuremath{\iota}\ensuremath{\varsigma} {\ensuremath{\Pi}o\ensuremath{\lambda}\ensuremath{\lambda}\ensuremath{\alpha}\ensuremath{\pi}\ensuremath{\lambda}\'{o}\ensuremath{\tau}\ensuremath{\eta}\ensuremath{\tau}\ensuremath{\varepsilon}\ensuremath{\varsigma}} (*)},
     journal = {\ensuremath{\Delta}\ensuremath{\varepsilon}\ensuremath{\lambda}\ensuremath{\tau}\ensuremath{\acute\iota}o \ensuremath{\tau}\ensuremath{\eta}\ensuremath{\varsigma} E\ensuremath{\lambda}\ensuremath{\lambda}\ensuremath{\eta}\ensuremath{\nu}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\acute\eta}\ensuremath{\varsigma} M\ensuremath{\alpha}\ensuremath{\theta}\ensuremath{\eta}\ensuremath{\mu}\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\acute\eta}\ensuremath{\varsigma} E\ensuremath{\tau}\ensuremath{\alpha}\ensuremath{\iota}\ensuremath{\rho}\ensuremath{\acute\iota}\ensuremath{\alpha}\ensuremath{\varsigma}},
     pages = {111--141},
     year = {1975},
     volume = {16},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/DEME_1975_16_a10/}
}