1. G. Wettermark, B. Carlson and H. Stymne, Storage of heat, a survey of efforts and possibilities, Swedish Council for Building Research to the Division of Physical Chemistry D 2: 1979.
2. G. A. Lane, Solar heat storage: Latent heat materials, Vol. I: Background and scientific principles, CRC Press Inc., Boca Raton, Florida 1983.
3. J. Schröder, Some materials and measures to store latent heat, Proc. IEA-Workshop on Latent heat stores-Technology and application, 7– 9 March 1984, Institut für Kernenergetik und Energiesysteme (IKE), Universität Stuttgart, Spezialberichte Kernforschungsanlage Jü lich 1985, Nr. 297, p. 11.
4. H. G. Lorsch, K. W. Kauffmann and J. C. Denton, Energy Conversion, 15 (1975) 1.
5. T. Ozawa, Thermochim. Acta, 92 (1985) 27.