1. Gourdin M., and Martin A. (1959): Exact determination of a phenomenological separable interaction, Nuovo Cimento 8, 5, 699–719 (section VIII.H, Foreword)
2. Chadan K. (1962): The left-hand cut discontinuity and equivalent potentials, Nuovo Cimento 24, 3, 379–384 (section VII.H)
3. Fulton T., and Newton R. G. (1956): Explicit noncentral potentials and wave functions for given s-matrices, Nuovo Cimento 10, 677–717 (section IV.H, Foreword)
4. De Alfaro V., Regge T., and Rossetti C. (1962): Nuovo Cimento 26, 1029–1062. Dynamical equation and angular momentum (section VII.H)
5. De Alfaro V., and Regge T. (1961): A discussion of the Noyes and Wong equation for potential scattering, Nuovo Cimento 20, 5, 956–962 (section VILH)