1. Current work on strata displacement around roadways;Shepherd,1970
2. Can local coal-measures be considered as masses of loose structure to which the laws of soil mechanics may be applied?;Seldenrath,1951
3. The soil mechanics approach to strata problems;King;Leeds Univ. Min. Soc. J.,1954
4. A mathematician looks at Strata Control;Seager;Kings Coll. Min. Soc. J. (Newcastle),1957
5. Distribution of pressure up, on and near the coal face;Spruth,1951