Text in periodical
Ryan, Paul. – «From crucifixion to cybernetic acupuncture». – Radical Software. – Vol. 1, no. 5 [(1972)]. – P. 38-40.
Also available on the Internet. {{www.radicalsoftware.org}}
Text in periodical
«VT program guide». – Radical Software. – Vol. 2, no. 5 ([1973]). – P. [46-51].
Also available on the Internet. {{www.radicalsoftware.org}}