"First nine chapters ... of the article 'Die allgemeinen Prinzipien der Wellenmechanik' ... which appeared in vol. V, part I of Handbuch der Physik (1...
"First nine chapters ... of the article 'Die allgemeinen Prinzipien der Wellenmechanik' ... which appeared in vol. V, part I of Handbuch der Physik (1958) edited by S. Flügge"--P. [ix]