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Gillette, Frank. – «Random notes on the special case or (loop-de-loop)». – Radical Software. – Vol. 1, no. 1 [(1970)]. – P. 6.
Also available on the Internet. {{www.radicalsoftware.org}}
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«Videotapes for sale and/or exchange». – Radical Software. – Vol. 1, no. 5 [(1972)]. – P. 71-78.
Also available on the Internet. {{www.radicalsoftware.org}}
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«Telethon». – Radical Software. – Vol. 2, no. 2 [(1973)]. – P. 62-63.
Also available on the Internet. {{www.radicalsoftware.org}}