Clegg & Guttmann, 1990, Message as Medium, museum in progress, Der Standard, 24-10-1990, pp. 6, 7, newspaper multiple
Clegg & Guttmann, 1990, Message as Medium, museum in progress, Cash Flow, No. 11, 1990, p. 129, magazine multiple
Clegg & Guttmann, 1990, Message as Medium, museum in progress, Cash Flow, No. 11, 1990, p. 139, magazine multiple