Gerald Pruckner, Franz Hackl,
"Warm glow, free-riding and vehicle neutrality in a health-related contingent valuation study"
, in Health Economics, Vol. 14, Nummer 3, Seite(n) 293-306, 2005, ISSN: 1099-1050
Original Titel:
Warm glow, free-riding and vehicle neutrality in a health-related contingent valuation study