In the mid 90s Cliff's position as a major artist of her era was confirmed when she was included in major international reference works; the massive Dictionary of Art by Macmillan Publishers, and Allgemeines Künstlerlexikon by K. G. Saur Verlag .
Verlag Die Schmiede | S. Fischer Verlag | Saur Revolution | Carlsen Verlag | Shaker Verlag | K. G. Saur Verlag | Grabert Verlag | G. Henle Verlag | Carl Heymanns Verlag | Carl Hanser Verlag | Akademie Verlag |