Fürth, Bertram Frauenknecht s.d. 87pp., with 64 colour illustrations, text in German, 30cm., ISBN 3-9800981-1-7, publisher's hardcover, dustwrapper, very good condition, S96721
Munchen, Galerie Frauenknecht 2000 48pp., with 41 colour illustrations, 30cm., illustrated softcover, good condition, S96881
Hannover, Hahn, 1997.
XIX,332 p. Hardb. 23 cm (MGH, Studien und Texte 16)