1. Models for Deriving Cultural Information from Stone Tools;Bonnichsen,1977
2. The cone fracture principle and the manufacture of lithic materials;Crabtree;Tebiwa,1972
3. On the manufacture of gun flints;Skertchly,1879
4. The mechanical basis of percussion flaking;Speth;American Antiquity,1972
5. Experimental investigations of hard-hammer percussion flaking;Speth;Tebiwa,1974