Article by Graham Birtwistle.
Elsevier , 29 oktober 1988
Article on the cobra group in honour of the fourtieth anniversary.
Elsevier, 29 oktober 1988
Article about photographer Nellie Riemens and the Cobra group in honour of the fourthieth anniversary.
Article about an exhibition of the Experimentele Groep Holland in de Bijenkorf in 1949 by Graham Birtwistle in Jong Holland nr. 5, 1988.
Article in Jong Holland nr. 5 from Willemijn Stokvis about the Cobra artists in Italy after the group officially dissolved itself.
Article about the COBRA postage stamps in collaboration with the PTT and designer Jan Bons.
Article by Graham Birtwistle in Jong Holland nr. 5 about the difficulties in the historiography of CoBrA.
Article on the Danish CoBrA artists by Peter Shield in Jong Holland nr. 5, 1988.