@book{
  author = "Gu, Chʿao-hao, 1926-, Li, Yishen, 屠, 規彰(1940-), International Conference on Nonlinear Physics",
  title = "Nonlinear physics : proceedings of the International Conference, Shanghai, People's Rep. of China, April 24-30, 1989",
  year: c1990
  key = "Solitons--Congresses",
  key = "Nonlinear theories--Congresses",
  publisher = "Springer-Verlag",
  address = "Berlin ; Tokyo",
  series = "Research reports in physics ;",
  ISSN/ISBN = "9783540523895 [3540523898] (: gw)",
  ISSN/ISBN = "9780387523897 [0387523898] (: us)",
}