出版
E. Trier, intro., Jean Arp, Sculpture, His Last Ten Years, New York, 1968, p. 107, no. 161.
I. Jianou, Jean Arp, Paris, 1973, p. 74, no. 161.
A. Hartog and K. Fischer, Hans Arp, A Critical Survey, Ostfildern, 2012, pp. 129-130, no. 161 (another cast illustrated, p. 129).