Am Monday, 'Stronger through struggle', Rotterdam Yearbook 2010 (Rotterdam, 2010), 253-266
GWJ Nieuwenhuis-Verveen, Statues, monuments and sculptures in Rotterdam (Rotterdam, 1972), 44
Pauline Tonkens, It didn't make me rich (Rotterdam, 1997)
Aad Wagenaar, From the Zweth to Zadkine (Rotterdam, 1991), 16