- istanbulsanatevi.com sanatcilar/soyadi-k/kobell-…
- outpost-art.org von-kobell-wilhelm-c-15_806_…
- exulanten.com munich.html
- imdb.com title/tt0061195/
- tr.abcdef.wiki wiki/Wilhelm_von_Kobell
- artic.edu artists/40648/wilhelm-alexander-…
- wn.com Wilhelm_Kobell
- pl.frwiki.wiki wiki/Wilhelm_von_Kobell
- prabook.com web/wilhelm.kobell/1744757