1. Minimum Detectable Power of a Pyroelectric Thermal Receiver
2. Literature guide to pyroelectricity 1970-1972
3. Weiner S. and H.P. Beerman, Proc. Electro-Optics 1973 Design Conf. New York 9/1973, 124 (available from Ind. and Scientific Conf. Management, Chicago, 111., 60606, U.S.A.).
4. Contrast NAS5-21655, NASA Goddard Spaceflight Center, Greenbelt, Maryland.
5. Change in the permittivity, the dielectric loss and the resistance of tgs caused by the loss of tgs-fragments in ultra-high-vacuum