"Kosten-Nutzen-Analyse" . . . . . . . . "Public-private partnerships : costs, benefits, and efficiencies" . . . . . "Electronic books"@en . . . . "Public-private partnerships costs, benefits, and efficiencies"@en . . "Public-private partnerships : costs, benefits and efficiencies" . "Aufsatzsammlung" . "Public Private Partnership." . . "Public-Private Partnership" . "BUSINESS & ECONOMICS Industries General." . . "Infrastrukturinvestition" . . . . "Private Infrastrukturinvestition" . . "USA" . .