The many-body problem; lecture notes. Christian Fronsdal, editor. Bergen International School of Physics (1st : 1961) Fronsdal, Christian, 1931- ed. Universitetet i Bergen. Many-body problem. QC174.5 .B4 1961 531 19 PIM "Held ... under the auspices of the University of Bergen." New York, W.A. Benjamin, 1962. 1962. 1962 Text xii, 310 p. eng