1. Reid P. Horizontal movements around Cataract Dam, Southern coalfield. In: Proceedings of the 4th triennial conference of the mine subsidence technological society. University of Newcastle; 1998. p. 157–70.
2. Reid P. Further analysis of horizontal movements around Cataract Dam, 1980 to 1997. In: Proceedings of 5th triennial conference of the mine subsidence technological society. Maitland; 2001. p. 211–8.
3. Hebblewhite B, Waddington A, Wood J. Regional horizontal surface displacements due to mining beneath sever surface topography. In: Proceedings of the 19th international conference on ground control in mining. Morgantown; 2000. p. 149–57.
4. Mills KW. Observations of horizontal subsidence movement at Baal Bone Colliery. In: Proceedings of 5th triennial conference of the mine subsidence technological society. Maitland; 2001. p. 99–111.
5. Mills KW, Puller JW, Salisbury O. Mechanics of horizontal movements associated with coal mine subsidence in sloping terrain inferred from field measurements. In: Proceedings of the 33th international conference on ground control in mining. Morgantown; 2014. p. 304–11.