Grünthal, G., Bosse, C. (1996): Probabilistic map of the earthquake hazard of the Federal Republic of Germany - Earthquake zonation map for the National Application Document to Eurocode 8: Research Report, (Scientific Technical Report ; 96/10), Potsdam : GFZ German Research Centre for Geosciences, 24 p. https://doi.org/10.2312/GFZ.b103-96103, GFZPublic, Full text (PDF)
Grünthal, G., Mayer-Rosa, D., Lenhardt, W. (1998): Earthquake hazard assessment for the D-A-CH countries - Germany, Austria, Switzerland. - Bautechnik, 75, 10, 753-767. https://doi.org/10.1002/bate.199805380, GFZPublic, Full text (PDF)