@article{MR_1992_38_a30,
     author = {N. A\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\xi}\ensuremath{\alpha}\ensuremath{\nu}\ensuremath{\delta}\ensuremath{\rho}\ensuremath{\acute\eta}\ensuremath{\varsigma} and  M. Burmester  and  B. X\ensuremath{\rho}\ensuremath{\upsilon}\ensuremath{\sigma}\ensuremath{\iota}\ensuremath{\kappa}\'{o}\ensuremath{\pi}o\ensuremath{\upsilon}\ensuremath{\lambda}o\ensuremath{\varsigma}},
     title = {A\ensuremath{\sigma}\ensuremath{\varphi}\ensuremath{\acute\alpha}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\iota}\ensuremath{\alpha} \ensuremath{\acute\epsilon}\ensuremath{\xi}\ensuremath{\upsilon}\ensuremath{\pi}\ensuremath{\nu}\ensuremath{\omega}\ensuremath{\nu} \ensuremath{\kappa}\ensuremath{\alpha}\ensuremath{\rho}\ensuremath{\tau}\ensuremath{\acute\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 = {72--84},
     year = {1992},
     volume = {38},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_1992_38_a30/}
}