Opern-Handbuch /
Riemann, Hugo,1849-1919.
Hildesheim : G. Olms,
1979.
Originally published in parts, 1881-86 (including 1st supplement) by C. A. Koch; 2d supplement, 1892.  In 1900 publication transferred to H. Seemann Nachfolger.
Reprint of the undated Leipzig ed. by H. Seeman Nachfolger retaining the faulty pagination.
Opera
Vocal music