Hettich, PeterPeterHettichGalbraith, LouisaLouisaGalbraith2023-04-132023-04-132014-10-01https://www.alexandria.unisg.ch/handle/20.500.14171/86273dePublic ProcurementPublic-Private-PartnershipPPPCountry Report Switzerland : October 2013 - September 2014journal article