by Yudin, B. A., Solov'ev, A. Z., Epifanov, V. M., Kolesnikov, V. N., Kornienko, V. P., Kuropyatnik, V. B., Shportko, A. L., Arestov, E. A., Lutsenko, V. G., Markov, E. V.
Published in Soviet Powder Metallurgy and Metal Ceramics (01.10.1979)