" München, Heyne (1998) ISBN 3-453-14135-0* Potts, Alex: ‘Tactility: The Interrogation of Medium in the Art of the 1960s,’ Art History, Vol.27, No.2 April 2004.
" München, Heyne (1998) ISBN 3-453-14135-0* Potts, Alex: ‘Tactility: The Interrogation of Medium in the Art of the 1960s,’ Art History, Vol.27, No.2 April 2004.