1. M. P. Malkov (ed.), Handbook on the Physicotechnical Fundamentals of Cryogenics [in Russian], Moscow (1973).
2. S. A. Ulybin, The Emissivity of Structural Materials at Low Temperatures: Obzor. Inform., Seriya KhM-6, Moscow (1974).
3. L. A. Novitskii and B. M. Stepanov, Optical Properties of Materials at Low Temperatures (Handbook) [in Russian], Moscow (1980).
4. N. M. Rastorgueva, ?Experimental investigation of integral hemispherical emissivities of materials in the temperature range 5?360°K,? Author's Abstract of Doctoral Thesis, Novosibirsk (1983).
5. M. G. Kaganer, Heat Insulation in Low-Temperature Technology [in Russian], Moscow (1966).