Archive document Watts, Robert ; Diamond, Bob ; Behrman, David. – Cloud music : a work in progress. – [ca 1974]. – [2] p. – Artist's statement. – Included in the file entitled «Behrman, David».
Archive document Watts, Robert ; Behrman, David ; Diamond, Bob. – Cloud music. – [1] p. – Technical description. – Included in the file entitled «Behrman, David».