Hofmann, C., Eichinger, R., Puchinger, L., Hahn, O., Henniges, U., Potthast, A., & Pilch-Karrer, E. (2011). To Treat or Not to Treat - That is the Question: Options for the Conservation of Iron-Gall Ink on Paper. In
The Book and Paper Group Annual 26 (2007) 31 (pp. 26–44). Edwards Brothers, Inc., United States.
http://hdl.handle.net/20.500.12708/27513 ( reposiTUm)