@article{MR_1978_10_a13,
     author = {M\ensuremath{\iota}\ensuremath{\chi}\ensuremath{\acute\alpha}\ensuremath{\lambda}\ensuremath{\eta}\ensuremath{\varsigma} B\'{o}\ensuremath{\sigma}\ensuremath{\kappa}o\ensuremath{\gamma}\ensuremath{\lambda}o\ensuremath{\upsilon}},
     title = {O\ensuremath{\rho}\ensuremath{\acute\iota}\ensuremath{\zeta}o\ensuremath{\upsilon}\ensuremath{\sigma}\ensuremath{\varepsilon}\ensuremath{\varsigma}},
     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 = {59--71},
     year = {1978},
     volume = {10},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_1978_10_a13/}
}