@article{MR_1975_3_a42,
     author = { },
     title = {\ensuremath{\Lambda}\ensuremath{\acute\upsilon}\ensuremath{\sigma}\ensuremath{\varepsilon}\ensuremath{\iota}\ensuremath{\varsigma} \ensuremath{\theta}\ensuremath{\varepsilon}\ensuremath{\mu}\ensuremath{\acute\alpha}\ensuremath{\tau}\ensuremath{\omega}\ensuremath{\nu} \ensuremath{\pi}\ensuremath{\alpha}\ensuremath{\nu}\ensuremath{\varepsilon}\ensuremath{\lambda}\ensuremath{\lambda}\ensuremath{\acute\eta}\ensuremath{\nu}\ensuremath{\iota}o\ensuremath{\upsilon} \ensuremath{\mu}\ensuremath{\alpha}\ensuremath{\theta}\ensuremath{\eta}\ensuremath{\tau}\ensuremath{\iota}\ensuremath{\kappa}o\ensuremath{\acute\upsilon} \ensuremath{\delta}\ensuremath{\iota}\ensuremath{\alpha}\ensuremath{\gamma}\ensuremath{\omega}\ensuremath{\nu}\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 = {33},
     year = {1975},
     volume = {3},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_1975_3_a42/}
}