I want to know of pedagogic references which teach how to compute anomalous dimensions (..wave-function renormalization..) at lets say 2-loops. I guess there might be specialized techniques for supersymmetric theories and especially may be adapted for $2+1$ dimensions.
- I have in mind being able to understand calculations like say in this paper in Appendix D starting on page 39.
I found the treatment of this subject in books like Peskin and Schroeder very sketchy and not explanatory enough. I would like to know of any more detailed "modern" reference which will help lets say with the calculation linked above.