1. I. P. Kupriyanov, Industrial Sterility in Foreign Plants of the Electronics Industry [in Russian], Moscow (1967).
2. Heating,24, No. 201, 303 (1962).
3. L. F. Roguleva, Establishment of Industrial Sterility in the Production of Electronic Equipment (Reviews of Electronic Technology), Series “Technology and Organization of Production” [in Russian], No. 2, Moscow (1969), p. 71.
4. M. Groves, J. Pharm. Pharmacol.,18, 161 (1966).
5. I. Vessey, C. E. Kendall, and F. E. Peters, Med. J. Aust.,1, 293 (1966).