1972 EPSTEIN, G.N. and McKELLAR, B.H.J. — Consistency Conditions for N N¯ → ππ Helicity Amplitudes.

McKellar, Bruce H., 1972 EPSTEIN, G.N. and McKELLAR, B.H.J. — Consistency Conditions for N N¯ → ππ Helicity Amplitudes. (1972), [UMA-IT-000003340]. University of Melbourne Archives, accessed 31/05/2026, https://archives.library.unimelb.edu.au/nodes/view/465911