1. Annual review of size reduction;Snow;Powder Technol.,1972
2. Analysis of fracture phenomena in glass spheres and discs;Rumpf;Paper A3, Second European Symposium on Size Reduction, Dechema Monograph,1967
3. Deformation and fracture phenomena for limestone, quartz and polystyrene;Steier;Third European Symp. on Comminution , Paper 1–6, Cannes, Oct. 1971, Dechema Monograph,1972