Washington
Army Medical Library
- Schullian, Dorothy M.; Sommer, Francis E.: A catalogue of incunabula and manuscripts in the Army Medical Library. New York 1950 U.S. National Library of Medicine Digital Collections
Library of Congress
- SCHUTZNER, Svato: Medieval and Renaissance manuscript books in the Library of Congress: a descriptive catalog. Bd.1: Bibles, Liturgy, Books of Hours. Bd. 2: Theology and Canon Law. Washington 1989 (HathiTrust)