1. Hayakawa, S., inFuntai Bussei Sokuteiho, Asakura,Tokyo. 1973, p.80.
2. Flow Conditioning Anticaking Agents
3. Powder Flow Studies I
4. Miwa, S., inFunryutai Kogaku, Asakura, Tokyo, 1972, p.211.
5. Micro-feeding of a fine powder using a vibrating capillary tube