Matthijs Visser, Terughoudend optreden OPTA bij Triple Play gewenst (Reticent regulation of Triple Play by OPTA advisable), ESB, nr. 4460, 20 May 2005 (with Roderik Hylkema and Daan Vrijmoet)

Iestyn Williams, The Role of General Competition Policy Standards in Utility Settings, Utilities Policy 12, 2004

Simon Baker and Theon van Dijk, Ringing the Changes – The New Approach to Telecommunications Regulation, RBB Brief 8, April 2003

Simon Baker, Michael Dietrich, Iestyn Williams and Juliet Young, Untying the Gordian Knot? Costs and Benefits of Vertical Separation in Telecoms, RBB paper, October 2002

Derek Ridyard, Regulation and Price Discrimination by Dominant Firms - Lessons from the Ofgas ValuePlus Decision, published in Regulation and Deregulation: policy and practice in the utilities and financial services industries Christopher McCrudden (ed), Clarendon Press, Oxford, 1999