1. Rf/φf strain analysis using an orientation net;De Paor;J. Struct. Geol.,1988
2. The theory of shear stress and shear strain on planes inclined to the principal directions;De Paor;J. Struct. Geol.,1990
3. Computer Graphics: Principles and Practice;Foly,1990
4. Mathematical games;Gardner;Scient. Am.,1965
5. The exact shape of deformed pebbles;Lisle;J. Struct. Geol.,1981