@book{
  author = "Doebner, Heinz Dietrich, 1931-, Hennig, Jörg Dieter, Palev, Tchavdar D., 1936-, Institut za i︠a︡dreni izsledvanii︠a︡ i i︠a︡drena energetika (Bŭlgarska akademii︠a︡ na naukite), Arnold-Sommerfeld-Institut für Mathematische Physik, Varna Summer School on Infinite Dimentional Lie Algebras and Quantum Field Theory",
  title = "Infinite dimensional Lie algebras and quantum field theory : proceedings of the Varna Summer School 1987",
  year: c1988
  key = "Quantum field theory--Congresses",
  key = "Lie algebras--Congresses",
  publisher = "World Scientific",
  address = "Singapore",
  ISSN/ISBN = "9789971507169 [9971507161]",
}