1. É. Ch. Pioro, A. G. Zherdin, N. Ch. Pioro, et al., ?Investigation of the properties of pulverized iron powder with ramified particle shape,? Poroshk. Metall., No. 10, 1?7 (1984).
2. A. V. Laptev, ?Elaboration of an experimental installation for impulse vacuum drop-forging of powders based on high melting compounds,? in: Elaboration and Investigation of New Materials and Composites Based on Them, Institut Problem Materialovedeniya AN UkrSSR, Kiev (1980), pp. 148?152.
3. GOST 9454-78. Method of Impact Bending Tests at Low, Room, and Elevated Temperatures. Valid from January 1, 1981.
4. GOST 25281-82. Powder Metallurgy. Methods of Determining the Density of Moldings. Valid from January 1, 1981.
5. I. I. Ivanova, A. N. Demidik, A. S. Drachinskii, et al., ?The mechanism of plastic deformation and failure of sintered iron containing disperse particles of titanium dioxide,? Poroshk. Metall., No. 7, 69?72 (1983).