W. A. Kaysser.International Powder Metallurgy Conference and Exhibition "The Future of Powder Metallurgy, P/M`86 " (1986 : Dusseldorf):Horizons of powder metallurgy.part 1.Verlag Schmid,1986.
International Powder Metallurgy Conference and Exhibition "The Future of Powder Metallurgy, P/M`86 " (1986 : Dusseldorf):Horizons of powder metallurgy.part 1