International index of multiples from Duchamp to the present : [published in conjunction with the Exhibition "Three or More - Multiplied Art from Duchamp to the Present", october 1992 at Wacoal Art Center of Spiral [...] / ed. by Daniel Buchholz, Gregorio Magnani. Spiral, Wacoal Art Center, Tokyo. Köln : Verl. d. Buchhandl. König, 1993