Willem Heijbroek, Louis van Roode - master in monumental custom work (Rotterdam, 2015)
Aad Koster and Pierre Pijpers, 'The untold story about The Guard', in: Rotterdam Yearbook 2013 (Rotterdam, 2013), 138-163
GWJ Nieuwenhuis - Verveen, Statues, monuments and sculptures in Rotterdam (Rotterdam, 1972), 41
Siebe Thissen, Sculptures. Urban embellishment in Rotterdam since 1940 (Rotterdam, 2016), 217
Aad Wagenaar, From De Zweth to Zadkine, monuments in Rotterdam that are reminiscent of the years 1940-1945 (Rotterdam, 1991), 14