%O Book
%T Contemporary Physics, Trieste Symposium 1968 (Trieste, 7-28 June 1968)
%A 
%U https://www.iaea.org/publications/2187/contemporary-physics-trieste-symposium-1968-trieste-7-28-june-1968
%D 1969
%I INTERNATIONAL ATOMIC ENERGY AGENCY
%C Vienna