books.google.at - This book provides a simple, but mathematically rigorous, introduction to perturbative renormalization. It can be read by students from the third year on and will leads them to a level where they can start reading the current research literature. The book gives a thorough introduction to the field-theoretic...http://books.google.at/books/about/Renormalization.html?id=nAXncL7_KrQC&utm_source=gb-gplus-shareRenormalization
