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Le prix du risque
Leeuw, Perre van, (1970)
Reisen in Bus, Bahn und Flugzeug –ein Fall für die Verbraucherpolitik!
Lell, Otmar, (2008)
Das Groupage-Problem kooperierender Verkehrsträger
Kopfer, Herbert, (1999)
Management of the public sector in Japan : are there lessons to be learned?
Borins, Sandford F., (1986)
Response to Gélinas and Sproule-Jones
Borins, Sandford F., (1988)
Public choice : "Yes Minister" made it popular, but does winning the Nobel Prize make it true?