1. M. Held, Initiation of Explosives: A Multi-Layered Problem in Detonation Physics, Translation of [1] by LLNL, Report 02973, 1980, Lawrence Livermore National Laboratory, USA.
2. M. Held, Initiation of Covered High Explosives has Many Facets, 3rd European Armoured Fighting Vehicle Symposium, Shrivenham, 28-30 April 1998, Shrivenham, UK.
3. M. Held, Initiation Phenomena with Shaped Charge Jets, 9th Symposium (International) on Detonation, Portland, OR, August 28 - September 1, 1989, pp. 1416-1426 and 1432-1440.
4. M. Held, Reaction Threshold in Unconfined and Confined Charges, Insensitive Munitions Technology Symposium, Williamsburg, Virginia, 7-9 June 1994, pp.?338.