S. Bullock

Environmental impacts associated with an abandoned mine in the Witbank Coalfield, South Africa

F. G. Bell, F. Bell, P. Lindsay, 2001 .

Acid mine drainage and pollution: two case histories from South Africa

F. Bell, S. Bullock, S. Geldenhuis, 1998, Geological Society, London, Engineering Geology Special Publications.

The Problem of Acid Mine Drainage, with an Illustrative Case History

F. Bell, S. Bullock, 1996 .

The effects of acid mine drainage from an old mine in the Witbank Coalfield, South Africa

F. Bell, S. Bullock, T. Hälbich, 2002, Quarterly Journal of Engineering Geology and Hydrogeology.

Some problems associated with past mining at a mine in the Witbank coalfield, South Africa

F. Bell, S. Bullock, 1997 .