Todorov I T Analytic properties of feynman diagrams in quantum field theory - New York Pergamon Press 1973 - xvi, 152p. cm. - International series of monographs in natural philosophy; 38 . Appendix 134-137p Standard No.: 36420 Source: Textual Subjects--Topical Terms: PhysicsQuantum field theory Dewey Class. No.: CN01, L13;1