"Differentiatingcriminal networksinthe illegal wildlife trade: organized, corporate and disorganized crime." In Trends in Organized Crime. Springer, 2020.

Wildlife Crime and Security, in Transnational Crime and Global Security. ABC-CLIO, 2018.

"De Verwevenheid Tussen de Onder- en bovenwereld in de Wildlife Handel." Cahiers Politiestudies 1, no. 38 (2016): 41-54.

Wildlife trafficking and criminogenic asymmetries in a globalised world., 2016.