Gnomon is now available in English as well as German

Gnomon Bibliographische Datenbank

The Gnomon Online database provides access to the complete journal "Gnomon" (since 1928) and the quarterly bibliographic appendix to "Gnomon" from 1990 onwards. The collection is augmented by the inclusion of the holdings of the Library of Eichstätt University in Classics, and, in addition, holdings of the Bayerische Staatsbibliothek in Munich with its unique collection of books published in Classical Studies ("Sondersammelgebiet 6, 12"). Further, the inclusion of some works of reference may be mentioned. 

From now on, the Gnomon Bibliographic Database is also available in an
English version (http://www.englisch.gnomon-online.de/), including a
comprehensive English thesaurus. The database contains around 500000
entries with monthly updates comprising the latest reviews, monograph
studies, anthologies, and articles in periodicals.