http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
[Rezension von: Oskar Bätschmann and Paul Müller, Ferdinand Hodler, Catalogue raisonné der Gemälde, Die Landschaften, vol. 1-2]
Marc Fehlmann, Assoc. Prof. Dr. FRSA, Department of Archaeology and Art History, Faculty of Arts and Sciences, Eastern Mediterranean University, Famagusta/ Gazimagusa, Northern Cyprus
Ferdinand Hodler - Catalogue raisonné der Gemälde ; Bd. 1: Die Landschaften
Zürich : Schweizerisches Inst. für Kunstwissenschaft, 2008
College Park, Md. : Univ. of Maryland, 2002