http://www.oskar-schlemmer.com/
http://www.artrepublic.com/biographies/215-oskar-schlemmer.html
http://en.wikipedia.org/wiki/Oskar_Schlemmer (not the most referential site)
http://www.theasc.com/blog/2014/03/24/oskar-schlemmer-the-bauhaus-stairway-and-the-triadic-ballet/
http://biography.yourdictionary.com/oskar-schlemmer
http://www.artrepublic.com/biographies/215-oskar-schlemmer.html
http://en.wikipedia.org/wiki/Oskar_Schlemmer (not the most referential site)
http://www.theasc.com/blog/2014/03/24/oskar-schlemmer-the-bauhaus-stairway-and-the-triadic-ballet/
http://biography.yourdictionary.com/oskar-schlemmer