Fischer, A. H., Manstead, A. S. R., Evers, C., Timmers, M., & Valk, G. H. (2004). Motives and norms underlying emotion regulation. In P. Philippot, & R. S. Feldman (Eds.), The regulation of emotion (pp. 187-212). Erlbaum.
Noordegraaf, L., & Valk, G. H. (1996). De Gave Gods. De pest in Holland vanaf de late middeleeuwen. Bert Bakker.