1. Blachowski, J.: Geographical Information System of the Walbrzych Underground Coal Mines a Way to Improve Effectiveness and Accuracy of Mining Grounds Deformation Studies, Scientific Papers of the Institute of Mining Engineering, Wroclaw University of Technology, 34, 17–27, 2008 (in Polish).
2. Blachowski, J. and Ellefmo, S.: Numerical modelling of rock mass deformation in sublevel caving mining system, Acta Geodyn. Geomater., 9, 379–388, 2012.
3. Blachowski, J. and Milczarek, W.: Development and application of 3D geological model and geoinformation system for numerical modelling of ground deformations in abandoned underground coal mines, Proceedings IAMG 2011 Conference, 837–851, https://doi.org/10.5242/iamg.2011.0000, 2011.
4. Blachowski, J. and Milczarek, W.: Analysis of surface changes in the Wałbrzych hard coal mining grounds (SW Poland) between 1886 and 2009, Geol. Q., 58, https://doi.org/10.7306/gq.1162, in press, 2014.
5. Blachowski, J. and Stefaniak, P.: An enhancement of the geoinformation system for the former Walbrzych coal mines, Scientific Papers of the Institute of Mining Engineering, Wroclaw University of Technology, 135, 5–21, 2012 (in Polish).