Cooperative phenomena, edited by H. Haken and M. Wagner. Haken, H. Wagner, M. (Max), 1931- joint author. Fröhlich, H. (Herbert), 1905- Physics. QC28 .H28 531.3 HAC Includes bibliographical references. Berlin, Heidelberg, New York, Springer, 1973. 1973. 1973 Text xv, 458 p. eng