@book{11894, author = {Deligne, Pierre. and Institute for Advanced Study (Princeton, N.J.)}, title = {Quantum fields and strings :}, publisher = {American Mathematical Society ;}, year = {c1999.}, address = {Providence, R.I. :}, note = {"The written record of the 1996-1997 Special Year in Quantum Field Theory held at the Institute for Advanced Study"--T.p. verso.} }