00593nam a2200193 a 450000500170000002000150001708200160003210000200004824500710006826000290013930000240016849000350019269000300022770000170025796400160027499700190029099900190030995200710032820251203110822.0  a0817634088  a512.55bLEP  aLepowsky, James  aIntroduction to vertex operator algebras and their representations  aBostonbBirkhauserc2004  axi,318p.c24 cm. HB  aProgress in mathematicsav.227  aVertex operators algebras  aLi, Haisheng  bcdefg_  a125118 LIBSC C  c103797d103797  00104070aPUbPUd2007-05-04g4805.92l0o512.55 LEPp125118yBK