BuistJ.M., Progress in Refrigeration Science and Technology, 271, 1965.
2.
SchmidtW., Koltech Klimat, 20, 12, 1968, 5.
3.
RouxG.A., Cahier du CSTB No. 1483, 1977, 195.
4.
CunninghamA., Rigid Polyurethane Foam: What Makes it the Most Effective Insulant? Polyurethanes 85, The PRI Urethane Group International Symposium, London, October 30, 1985.
5.
NortonF.J., J. Cell. Plastics, 3, 1, 1967, 23.
6.
MarechalJ.C., Annales de l' ITBTP, January 1973.
7.
BallG.W., J. Cell. Plastics, 6, 1, 1970, 66.
8.
Brandreth Factors Influencing the Ageing of Rigid PUR foam, 3rd Int. Conf. on Thermal Insulation, Millbrac, California, January 20-22nd 1981.
9.
RouxG.A., Possibilities d'evolution des Isolants Thermiques en Polyurethanne Rigide, Seminaire AFME, Sophia Antipolis, Dec. 2-3rd 1987.