CEA, 75 - Paris (France); v. 1 p. 274-275; ISBN 2-7272-0020-X; ; 1977; v. 1 p. 274-275; Commissariat a l'Energie Atomique; Paris, France; 10. International conference on the physics of electronic and atomic collisions (ICPEAC); Paris, France; 21 - 27 Jul 1977; Books of abstracts commercially available from North-Holland, Amsterdam, the Netherlands; Published in abstract form only.