The literature on this issue
MARSCHALKO, Marian, Isik YILMAZ, Veronika KŘÍSTKOVÁ, Matěj FUKA, Karel KUBEČKA, Tomas BOUCHAL a Martin BEDNARIK. Optimization of building site category determination in an undermined area prior to and after exhausting coal seams. International Journal of Rock Mechanics and Mining Sciences. 2012, roč. 54, s. 9-18. DOI: 10.1016/j.ijrmms.2012.05.021. available from:
http://linkinghub.elsevier.com/retrieve/pii/S1365160912001013
MARSCHALKO, Marian, Isik YILMAZ, Martin BEDNÁRIK a Karel KUBEČKA. Influence of underground mining activities on the slope deformation genesis: Doubrava Vrchovec, Doubrava Ujala and Staric case studies from Czech Republic. Engineering Geology. 2012, 147-148, s. 37-51. DOI: 10.1016/j.enggeo.2012.07.014. available from:
http://linkinghub.elsevier.com/retrieve/pii/S001379521200227X