1. Renormalizable models with simple symmetry breaking: 1. Symmetry breaking by a source term;Symanzik;Commun. Math. Phys.,1970
2. Renormalization of theories with broken symmetry;Symanzik,1972
3. Renormalizable models with broken symmetries;Stora,1976
4. Renormalizable models with broken symmetries;Lowenstein,1981
5. Renormalizable theories with symmetry breaking;Becchi,1981