@article{EUG_1999_51_a5,
     author = { },
     title = {B\ensuremath{\iota}\ensuremath{\beta}\ensuremath{\lambda}\ensuremath{\iota}o\ensuremath{\pi}\ensuremath{\alpha}\ensuremath{\rho}o\ensuremath{\upsilon}\ensuremath{\sigma}\ensuremath{\acute\iota}\ensuremath{\alpha}\ensuremath{\sigma}\ensuremath{\eta}},
     journal = {E\ensuremath{\upsilon}\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\ensuremath{\varsigma} \ensuremath{\Gamma}},
     pages = {92--96},
     year = {1999},
     volume = {51},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/EUG_1999_51_a5/}
}