Two volumes (original title "Die Auffuhrungen der Opern von Richard Strauss im 20 Jahrhundert") of a colosal work listing all the performances of Strauss operas, including those few in the 19th century, and all of the 20th century, in all theaters. Conductors, directors, singers of the principal parts. These 2 only volumes contains information about almost 4,400 productions revivals, revised productions, guest performances of visiting companies, performances during Strauss`days and concert productions of the 16 operas by Strauss in the world - totaling almost 50,000 performances, almost 7,000 casts with 13,000 artists.
Written in German, but easy to consult since this is mostly a huge database in tables - only 74 pages with text are written in German, 2 with important information are translated into English. Published by Hans Schneider.
2 Volumes - See a scan of an example of a table with information.