TY - BOOK AU - Polchinski,Joseph Gerard TI - String theory T2 - Cambridge monographs on mathematical physics SN - 9780521633031 AV - QC794.6.S85 .P64 1998 PY - 1998/// CY - Cambridge United Kingdom PB - Cambridge University Press KW - String models KW - Superstring theories N1 - v.1. An introduction to the bosonic string -- volume2. Superstring theory and beyond ER -