1. The use of models for the study of mining problems;Bucky;Am. Inst. Mining Met. Engrs. Tech. Publ.,1941
2. Effects of immediate roof thickness in longwall mining as determined by barodynamic experiments;Bucky;Trans. A.I.M.E.,1938
3. A model for the mechanics of jointed rock;Goodman;J. Soil Mech. Found. Div., Am. Soc. Civ. Engrs.,1968
4. Messungen der Bewegungen, Verformungen und Spannungen im Gebirge;Helfrich,1969
5. Beams on Elastic Foundation;Hetenyi,1946