MARTIN, Douglas. Ira Cohen, an Artist and a Touchstone, Dies at 76 [online]. The New York Times, 2011-05-01 [cit. 2013-08-15]. Dostupné online. (anglicky)
theguardian.com
RYNNE, Frank. Ira Cohen obituary [online]. The Guardian, 2011-05-13 [cit. 2013-08-15]. Dostupné online. (anglicky)