North-Holland
G. Watel

Tip, A. (1978). Analytic behaviour of forward scattering amplitudes for electron (positron) scattering from atoms. In G. Watel (Ed.), Electronic and Atomic Collisions : Proceedings of the 10th International Conference on the Physics of Electronic and Atomic Collisions, Paris, 21-27 July, 1977 : Invited Papers and Progress Reports (pp. 95–98).