The text is an excerpt from the catalogue of the Third International Open Encounter on Video (Ferrara, Palazzo Dei Diamanti, 25th-29th May 1975), organized by CAYC, 1975. pdf here

Extract from Nuovi Media, exhibition catalogue, curated by G. Sartorelli and T. Toniato, (Venezia Bevilacqua La Masa 1978), Venezia 1978 pdf here

Catalogue of an exhibition organized at Galleria del Cavallino in February 1975. It includes an essay by Ernesto Francalanci on the possibilities of videotape. pdf here