Japanese journal of applied physics. Supplement ; Japanese journal of applied physics : Supplement ; British journal of applied physics. Supplement ; Japanese journal of applied physics ; Japanese journal of applied physics. Japanese journal of applied physics Japanese Journal of Applied Physics ; v. 20 (1981) : Supplement 20-1 Japanese Journal of Applied Physics ; v. 21 (1974) : Supplement 21-1 British journal of applied physics. British journal of applied physics