Studio International - March, 1970  Groups by Lucy Lippard (including: Robert Barry, Ian Baxter - N.E. Thing Co., Jon Borofsky, Douglas Huebler, Adrian Piper, and Lawrence Weiner) / Beware! by Daniel Buren (plus comments on Beware by Michel Claura) / Richard Long Images / New York Commentary (including: Michael Asher, Larry Bell, Mel Bochner, Michael Heizer, Eva Hesse, and Robert Morris)
Studio International - April, 1970  Artists and Photographs by Lawrence Alloway / N.E. Thing Co. and Les Levine by Charlotte Townsend / 18 Paris iv.70 by Michel Claura and Rene Denizot 
Studio International - Vol 195, No 9901/1980