Measurements and their analysis in railway technology (5th International Colloquium of ORE/BVFA on railway vehicle technology, held at Vienna, Austria, from 6th to 8th May, 1969)

Control and optimisation techniques for traffic control systems (First International computer programme Colloquium in Derby from 16th to 18th September 1969)

Proceedings of the ORE Colloquium on ´High speeds´ held at Vienna Arsenal on 23 April 1971

Report on the second Colloquium ´Technical computer programs´ (BR Research Department Derby, 16th to 18th May 1972)

Report on the third Colloquium ´Technical computer programs´ Amsterdam, 8th to 10th May 1973

Report on the fourth ORE Colloquium ´Technical computer programs´ Munich, May 28th 30th, 1974

Report on the fifth ORE Colloquium ´Technical computer programs´ Vienna, June 3rd 5th, 1974

Report on the sixth ORE Colloquium ´Technical computer Programs´ Lyon, 1st to 3rd June 1976

Report on the seventh ORE Colloquium ´Technical Computer Programs´ Dresden, 26th to 28th September 1978

Proceedings of the ORE Colloquium ´Safe electronic systems´, held in Paris on 23rd and 24th September 1980