INTERVIEW - Eero Epner. Raul Keller interviewed by Eero Epner. – Estonian Art 2011, 1, 43
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Andreas Trossek, Raul Keller’s Greatest Hits. – KUNST.EE 2/2012
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Maria Juur, What is Estonian Sound Art. – Estonian Art 2011/1
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Eero Epner, Interview with Raul Keller. – Estonian Art 2011/1
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EKKM's collection (http://www.ekkm.ee/en/kollektsioon/raul-keller/)
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