@book{jacquesestimative-li05bugeng,
  address   = {Beijing},
  author    = {Li, Yunbing \zh{李云兵}},
  publisher = {Mínzú chūbǎnshè \zh{民族出版社}},
  title     = {Bùgēngyǔ yánjiū \zh{布赓语研究}},
  year      = {2005}
}