Müller, N., & Davatz, B. (1999). As time goes by: Portraits 1982,1988,1997 / Barbara Davatz. [Autorinnen: Nicole Müller ; ] (1. ed.). Ed. Frey.
Lua i Stíl Chicago (17ú heag.)Müller, Nicole, agus Barbara Davatz. As Time Goes by: Portraits 1982,1988,1997 / Barbara Davatz. [Autorinnen: Nicole Müller ; ]. 1. ed. Zurich: Ed. Frey, 1999.
Lua MLA (8ú heag.)Müller, Nicole, agus Barbara Davatz. As Time Goes by: Portraits 1982,1988,1997 / Barbara Davatz. [Autorinnen: Nicole Müller ; ]. 1. ed. Ed. Frey, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.