On page 283 of Ben Vautier. Is everything art?
©2015 Museum Tinguely, Basel, Kehrer Verlag Heidelberg Berlin, authors, artists and photographers [and translator!]. ISBN 978-3-86828-649-6
Truth be told, you just have to type www.ben-vautier.com and I will be happy. You will find something to read for two years. It will add a number to my counter and will make me proud.