- Author: Düsseldorfer Geschichts-Verein (ed.)
- Language: German
- Year: 1897
- Author: Düsseldorfer Geschichts-Verein (ed.)
- Language: German
- Year: 1895
- Author: Düsseldorfer Geschichts-Verein (ed.)
- Language: German
- Year: 1895
- Author: Düsseldorfer Geschichts-Verein (ed.)
- Language: German
- Year: 1894
- Author: Düsseldorfer Geschichts-Verein (ed.)
- Language: German
- Year: 1893
- Author: Düsseldorfer Geschichts-Verein (ed.)
- Language: German
- Year: 1892
- Author: Johann Nikolaus von Wilmowsky
- Language: German
- Year: 1888
- Author: Otto R. Redlich Düsseldorfer Geschichts-Verein (ed.)
- Language: German
- Year: 1892
- Author: Eugen Bracht
- Language: German
- Year: 1883
Der Dom zu Trier in seinen drei Hauptperioden: der Römischen, der Fränkischen und der Romanischen
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- Author: Johann Nikolaus von Wilmowsky
- Language: German
- Year: 1874