1. Akim, E. L. (1978)Tappi 61(9), 111.
2. Alexander, S. D. and Marton, R. (1968)ibid. 51(6), 283.
3. Alexander, S. D., Marton, R. and McGovern, S. D. (1968)ibid., 277.
4. Atack, D. (1978) InFibre-Water Interactions in Papermaking. London: Clowes, p. 261.
5. Aziz, S. and Sarkanen, K. (1989)Tappi 72(3), 169.