Baudenkmäler. – F. Luthmer (Hrsg.).
Architectural monuments. - F. Luthmer (ed.). Romanesque ornaments and architectural monuments in examples from ecclesiastical and profane architectural monuments of the 11th to 13th century Ffm., Keller, 1896. fol. 1 leaf a. 30 collotype plates. Ohlwd. portfolio, this damaged.
Art Library Berlin, cat. "Masterpieces", 1299. University Eichstätt, cat. "Masterpieces", 198 - The selection of the historical material was aimed at "supplying modern art with study material from the treasures of the past" (text). The model work for the continuation of Romanesque artistic achievements after photographs by the Frankfurt photographer C. Böttcher - foxing and marginal stains.
