D. Brook
- Study of the potential for use of underground space for storage and disposal in the United Kingdom. Vorgetragen bei: AFTES - Journées techniques, Bordeaux, 1987. (1987):
- Abandoned limestone mines in the West Midlands of England - Underground dereliction in an urban area. Vorgetragen bei: AFTES - Journées techniques, Bordeaux, 1987. (1987):