1. Proc. 1st Int. Symp. on Explosive Detection Technology;Gomberg,1992
2. Proc. Contraband and Cargo Inspection Technology Int. Symp.;Gomberg,1992
3. Nuclear Techniques for Industrial and Analytical Applications;Vartsky,1993
4. Applications of Nuclear Techniques;Grodzins,1991
5. Nuclear Techniques for Industrial and Analytical Applications;Sawa,1993