1. Pion-Proton Scattering at 150 and 170 Mev
2. Pion-Proton Scattering at 220 Mev
3. Proceedings of Padova-Venice International Conference on Mesons and Recently Discovered Particles;Korenchenko,1957
4. Proceedings of the Sixth Annual Rochester Conference on High Energy Nuclear Physics;Puppi,1956
5. R. S. Margulies (private communication).