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https://www.theartstory.org/artist/af-klint-hilma/

https://www.tate.org.uk/tate-etc/issue-27-spring-2013/first-abstract-artist-and-its-not-kandinsky#:~:text=What%20Kandinsky%20did%20not%20know,the%20same%20path%20towards%20abstraction.