TY - BOOK AU - Lehmann, D TI - Mathematical methods of manybody quantum field theory SN - 9781584884903 U1 - 530.145 PY - 2005/// CY - Boca Raton PB - CRC KW - FEYNMAN DIAGRAMS KW - GAUSSIAN INTEGRATION KW - PERTURBATION THEORY KW - QUANTUM FIELD THEORY ER -