1. Forging of powder metallurgy preforms;Hausner;New Perspectives in Powder Metallurgy,1973
2. Cold extrusion of Steels — Its Promises and Problems;Weymueller,1975
3. The cold extrusion of mild steel billets produced by powder metallurgical techniques;Dower;Modern Developments in Powder Metallurgy,1974
4. The cold forging of ferrous P/M preforms;Obara;Modern Developments in Powder Metallurgy,1974