RISM catalog
RISM (Organization) (Issuing body), Bayerische Staatsbibliothek (Issuing body), Staatsbibliothek zu Berlin--Preussischer Kulturbesitz (Issuing body)
"RISM’s over 1.4 million records can be searched through two different but complementary resources, the RISM Catalog and RISM Online. The musical sources that stand at the heart of the RISM project are music manuscripts, printed music, libretti, and treatises preserved in over 3,000 libraries, museums, archives, churches, schools, and private collections around the world. Our online tools incorporate records from earlier series (all of A/I, all of A/II, all of B/I, some of B/II and other B volumes; for details, see below), but also expand well beyond our early publications. The database grows monthly and reflects the work of our active RISM contributors worldwide."-- https://rism.info/publications.html
Website, English, 2010
[Internationales Quellenlexikon der Musik (RISM)] ; [Bayerische Staatsbibliothek] ; [Staatsbibliothek zu Berlin, Preussischer Kulturbesitz], [Frankfurt am Main], [München], [Berlin], 2010