SPONTANEOUS BREAKDOWN OF STRONG INTERACTION SYMMETRY AND THE ABSENCE OF MASSLESS PARTICLES
@article{Migdal1967SPONTANEOUSBO, title={SPONTANEOUS BREAKDOWN OF STRONG INTERACTION SYMMETRY AND THE ABSENCE OF MASSLESS PARTICLES}, author={A. Migdal and A. Polyakov}, journal={Journal of Experimental and Theoretical Physics}, year={1967}, volume={24}, pages={91} }