Sheorey, P. R. and Barat, D. and Mukherjee, K.P. and Prasad, R.K. and Das, M.N. and Banerjee, G. (1995) Application of the Yield Pillar Technique for Successful Depillaring Under Stiff Strata. International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstract , 32 (7). pp. 699-708. ISSN 0148-9062

Sheorey, P. R. and Prasad, R.K. and Mukherjee, K.P. and Barat, D. and Das, M.N. (1994) A successful trial of the yield pillar technique in Jambad seam at porascole east colliery. Journal of Mining Research , 2 (3&4). pp. 47-50. ISSN 0971-1899

Sheorey, P. R. and Das, M.N. and Barat, D. and Prasad, R.K. and Singh, B. (1987) Coal pillar strength estimation from failed and stable cases. International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstract , 24 (6). pp. 347-355. ISSN 0148-9062