1. J. F. Ryder, ?Applications of fibre cement?, RILEM Symposium (The Construction Press, Lancaster, 1975).
2. A. K. Green and A. M. Pye, Fulmer Research Institute Special Report no. 5 (1976).
3. A. W. Mckenzie, Appita 32 (1978) 207.
4. P. Mauranen, ?Thermomechanical Pulp on Stone Groundwood?, International Mechanical Pulping Conference, Helsinki (1977).
5. ?Material Needs and the Environment Today and Tomorrow?, Final Report of the National Commission of Materials Policy (Finnish Paper Engineers Ass. 1973) Vol. 3.