https://www.welt.de/kultur/kunst-und-architektur/article116164787/Die-Lebensluegen-des-Jahrhundertkuenstlers-Beuys.html

https://www.buscabiografias.com/biografia/verDetalle/8429/Joseph%20Beuys

https://culturenightlosangeles.wordpress.com/

http://www.minervaauctions.com/aste/fotografia-asta120/40088-renato-corsini-joseph-beuys-nella-sua-casa-a-dusseldorf/

https://www.moyland.de/index.php?id=530

http://es.wikipedia.org/wiki/Joseph_Beuys

http://blog.naver.com/PostView.nhn?blogId=wemakeartis&logNo=110185515827&parentCategoryNo=9&categoryNo=&viewDate=&isShowPopularPosts=true&from=search

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