Die Dürerzeichnungen der Albertina. Graphische Sammlung Albertina, Wien 1971, S. 106–107 (Textarchiv – Internet Archive – Leseprobe).
google.de
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Hermann Weissgärber: You Can’t Copy Tradition: A View on the Eventful History and Bilateral Work of the Austro-American Institute of Education from 1926–2016. Band1: 1926–1971. Books on Demand, Norderstedt 2016, ISBN 978-3-7412-1906-1, S.87–88. 136–140 (books.google.de – Leseprobe).
Erika Esau: Spitzmüller Chronologie. In: Three German Women: Personal Histories from the Twentieth Century. S. 47–54 (books.google.de – Leseprobe).