@book{
  author = "Mancini, Ferdinando, International Symposium on Quantum Field Theory",
  title = "Quantum field theory : proceedings of the International Symposium in honour of Hiroomi Umezawa, held in Positano, Salerno, Italy, June 5-7, 1985",
  year: c1986
  key = "Quantum field theory--Congresses",
  key = "Particles (Nuclear physics)--Congresses",
  key = "Condensed matter--Congresses",
  publisher = "North-Holland",
  address = "Amsterdam",
  ISSN/ISBN = "9780444870018 [0444870016]",
}