1. |
A. A. Averkin, A. V. Airapetyants, Yu. V. Ilisavskii, È. L. Lutsenko, V. S. Serebryanikov, “The electric conductivity of heat-treated polyacrylonitryl as influenced by tensile stress and all-round pressure”, Dokl. Akad. Nauk SSSR, 152:5 (1963), 1140–1142 |