Text in periodical «EAT attendance growing». – Sunday Oregonian. – (Aug. 18, 1968). – P. [].
Text in periodical Fagan, Beth. – «New Yorker reports on recent developments in 'EAT' group». – Sunday Oregonian. – (Feb. 9, 1969). – P. [].
Text in periodical «Video directory». – Radical Software. – Vol. 2, no. 1 [(1972)]. – P. 57-62. Also available on the Internet. {{www.radicalsoftware.org}}