@article{MR_1977_5_a2,
     author = {J. F. Barrett},
     title = {\ensuremath{\Theta}\ensuremath{\varepsilon}\ensuremath{\omega}\ensuremath{\rho}\ensuremath{\acute\iota}\ensuremath{\alpha} \ensuremath{\tau}o\ensuremath{\upsilon} {K\ensuremath{\alpha}\ensuremath{\lambda}\ensuremath{\acute\upsilon}\ensuremath{\tau}\ensuremath{\varepsilon}\ensuremath{\rho}o\ensuremath{\upsilon}} {E\ensuremath{\lambda}\ensuremath{\acute\epsilon}\ensuremath{\gamma}\ensuremath{\chi}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 = {29--46},
     year = {1977},
     volume = {5},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_1977_5_a2/}
}