Translation of: 'Vorgeschichte des Planckschen Stahlungsgesetzes'. Wiesbaden : F. Steiner, 1970.
Bibliography: p.245-265. _ Includes index.
Early history of Planck's radiation law by Hans Kangro. ISBN 0850660637. Published by Taylor and Francis in 1976. Publication and catalogue information, links to buy online and reader comments.