Schmid, Hans.
Sołtan, Andrzej. Mońka, Jadwiga. Red.
Grotowski, Marian (1882-1951).
Krönert, J. Gast, TH. Grüss, H. Kornetzki, M. Lieneweg, F. Müller, E. A. W. Müller H. 0. Pohlman, R.
Institute of Electrical and Electronics Engineers. IEEE Magnetics Society.
Justa, Andrzej. Red.