Zero /
Piene, Otto.
Mack, Heinz,1931-
Beckman, Howard.
Cambridge, Mass. London M.I.T. Press
1973
English, French and German text. - 'The magazine "Zero" ... published by the artists of the Zero group ... grew out of exhibitions arranged by Piene and Mack in 1958' - note
Originally published in Germany in 1958 and 1961 by Otto Piene and Heinz Mack
Art, Modern
'Zero' group.