Maegli, MartinMartinMaegliJaag, ChristianChristianJaagKoller, MartinMartinKollerTrinkner, UrsUrsTrinknerMichael A., Crew2023-04-132023-04-132011https://www.alexandria.unisg.ch/handle/20.500.14171/95258enPostal Markets and Electronic Substitution : Implications for Regulatory Practices and Institutions in Europebook section