Etra, Bill. — [Letter to Dieter Daniels, Zentrum für Kunst und Medientechnologie Karlsruhe]. — Englewood : Etra Consulting, October 28, 1992. — [1] p. — C.C. to Woody Vasulka. — Included in the file entitled «Etra, Bill». CR+D Code number : VAS B39-C3-18