Solid state physics in electronics and telecommunications : proceedings of an international conference held in Brussels, June 2-7, 1958, vol. 3 : magnetic and optical properties, pt. 1 / edited by M. Désirant [and] J.L. Michiels. Désirant, M., ed. Michiels, J. L. (John Louis), 1915- ed. International Union of Pure and Applied Physics. Electronics Congresses. Telecommunication Congresses. Solid state physics Congresses. TK7800 .I6 621.38 DES Includes bibliographical references. London ; New York : Academic Press, 1960. 1960. 1960 Text xvi, 557 p. : eng