1. Frictional behaviour of mild steel in friction welding;Duffin;Wear,1973
2. The mechanics of friction welding;Duffin,1974
3. Transport Phenomena;Bird,1960
4. Research friction welding machine with hydrostatic drive;Duffin;Met. Constr. Br. Weld. J.,1972
5. Thermophysical Properties of Matter;Touloukian,1970