Documentation of 9 stamp actions by Pier van Dijk/Robert Joseph, Johan van Geluwe, Hezy Leskly, Mass and Individual Moving, Uwe Poth, Endré Tot, Maio Wassenburg, Ronald Wigman, Rubber vol.3 No.10-12, edited by Aart van Barneveld, soft cover, 64 pages, 23,5 x 16 cm, ed/500, Amsterdam 1980