Maegli, MartinKoller, MartinJaag, ChristianTrinkner, Urs2010-10-012010-10-012010-10-012010https://infoscience.epfl.ch/handle/20.500.14299/54743Postal Markets and Electronic Substitution: What is the Impact of Convergence on Regulatory Practices and Institutions?text::conference output::conference paper not in proceedings