[14] Zie COWI, 2000: A study on the economic valuation of environmental externalities from landfill disposal and incineration of waste, Brussel: Europese Commissie, hoofdstuk 9.
[14] Siehe COWI, 2000: A study on the economic valuation of environmental externalities from landfill disposal and incineration of waste, Brüssel: Europäische Kommission, insb.