Masthead.Published in:Fortschritte der Physik / Progress of Physics, 1978, v. 26, n. 5, p. fmi, doi. 10.1002/prop.19780260501Publication type:Article
Source Methods in Quantum Field Theory.Published in:Fortschritte der Physik / Progress of Physics, 1978, v. 26, n. 5, p. 289, doi. 10.1002/prop.19780260502By:Dittrich, WalterPublication type:Article