Escudie, J. L., Austin, S. M., Boudard, A., Bruge, G., Chaumeaux, A., Farvacque, L., Legrand, D., Lugol, J. C., Mayer, B., Belery, P., Debevec, P. T., Delbar, T., Gregoire, G., Cameron, J. M., Glashausser, C., Whitten, C. A., Deutsch, J., & Prieels, R. (1981). Search for enhancements due to pion condensation precursors in (p,p′) reactions on 12C. Physical Review C, Nuclear Physics, 24, 792-795. https://doi.org/10.1103/PhysRevC.24.792 (Original work published 1981)