Schwarzkopf, P., Kieffer, R., Leszynski, W., & Benesovsky, F. (1953). Refractory hard metals: Borides, carbides, nitrides, and silicides ; the basic constituents of cemented hard metals and their use as high-temperature materials. New York: Macmillan.
Παραπομπή Chicago StyleSchwarzkopf, Paul, Richard Kieffer, Werner Leszynski, and Fritz Benesovsky. Refractory Hard Metals: Borides, Carbides, Nitrides, and Silicides ; the Basic Constituents of Cemented Hard Metals and Their Use As High-temperature Materials. New York: Macmillan, 1953.
Παραπομπή MLASchwarzkopf, Paul, Richard Kieffer, Werner Leszynski, and Fritz Benesovsky. Refractory Hard Metals: Borides, Carbides, Nitrides, and Silicides ; the Basic Constituents of Cemented Hard Metals and Their Use As High-temperature Materials. New York: Macmillan, 1953.