662.92 | E81 3 | Akerman, K. Estimation of the rate of material transport in rotary kilns used for decomposition of calcium sulfate at the sulfuric acid plant at wizow, Poland [Текст] : rep. No. 183/XVI / Polska Akad. Nauk, Inst. Badan Jadrowych. — Warszawa : [s. n.], 1960. — 9 s. |
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