@book{
  author = "Spring School on Superstrings, Harvey, Jeffrey A, Iengo, R, Narain, K. S., Randjbar-Daemi, S., Verlinde, H.",
  title = "String theory and quantum gravity '92 : proceedings of the Trieste Spring School & Workshop, ICTP, Trieste, Italy, March 30-April 10, 1992",
  year: c1993
  key = "String models--Congresses",
  key = "Superstring theories--Congresses",
  key = "Quantum gravity--Congresses",
  publisher = "World Scientific",
  address = "Singapore",
  ISSN/ISBN = "9789810213428 [9810213425]",
}