1. 1) Murai M., Nakanishi A. : Papermaking Engineering, Kougakutosho, 1964, pp. 256-281
2. 2) JAPAN TAPPI : New Pulp and Paper Manufacture Vol. 5 “Stock Preparation”, JAPAN TAPPI, 1992, pp, 105-138
3. 3) Onabe F. : The Recent Trends of Wet End Chemistry and Paper Chemicals, CMC Publishing, 2004, pp. 36-45
4. 4) Kato M., Isogai A., Onabe, F. : J. Wood Sci., 44 (5) 364-368 (1998)
5. 5) JIS P8220 (1998)