StilleH.Rock support in theory and practice. Paper presented at International symposium on rock support, Sudbury, Canada, 1992.
2.
TimoshenkoS.Strength of materials. Part IIAdvanced theory and problems (Princeton: D. Van Nostrand Company Inc., 1956), 572 p.
3.
VenkateswarluV. and RajuN. M.Support design for mine roadways— a geotechnical approach. InProc. 13th World Mining Congress, Stockholm, 1987, 857–64.
4.
CMRS Report. Geomechanical classification of coal measure rocks vis-à-vis roof support. Unpublished report, Central Mining Research Institute, Dhanbad, India, 1987.