Text in catalogue Hay, Deborah. – «Solo». – 9 evenings : theatre and engineering. – Edited by Pontus Hultén and Frank Königsberg. – [New York] : Experiments in Art and Technology : The Foundation for Contemporary Performance Arts, [1966]. – P. [6].
Archive document Hay, Deborah. – Remarks by Deborah Hay. – September 29, 1966. – [1] p. – Artist's statement. – Included in the file entitled «Press package for 9 evenings : theatre and engineering».