Vol. 80 B + C, numbers 1-4 (July-Oct. 1975)- contain Proceedings of the 1974- Arbeitsgemeinschaft Magnetismus Conference; volume 82 B + C, numbers 1 (Mar. 1976)- contains Proceedings of the 12th- International Conference on Phenomena in Ionized Gases
In English, French, and German, with abstracts in English