Charles Steffen (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Charles Steffen" in English language version.

refsWebsite

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2web.archive.org

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artbrut.ch

"Collection de l'Art Brut - Charles Steffen". Art Brut. Retrieved 2021-03-30.

bowmanart.com

"Charles Steffen, outsider artist from Illinois". Archived from the original on 2010-04-20. Retrieved 2012-01-19. Russell Bowman Art Advisory

tfaoi.com

"Life Lines: The Drawings of Charles Steffen". Archived from the original on 2012-01-12. Retrieved 2012-01-19. Resource Library

web.archive.org

"Life Lines: The Drawings of Charles Steffen". Archived from the original on 2012-01-12. Retrieved 2012-01-19. Resource Library
"Charles Steffen, outsider artist from Illinois". Archived from the original on 2010-04-20. Retrieved 2012-01-19. Russell Bowman Art Advisory