Van Sluis, A., Marks, P., Gilleir, F. & Easton, M. (2009). Nodal security in the ports of Rotterdam and Antwerp', sixth annual work conference of the Netherlands Institute of Government (NIG), Panel 4: Citizens and the governance of local safety chaired by Lex Cachet, dr. Peter Marks and dr. Arie van Sluis of the Erasmus University Rotterdam, University of Leiden, 12-13 november.