//-->
Developing local and regional environmental action plans : case studies of Bulgaria, the Czech Republic, Hungary, Poland and the Slovak Republic
Hak, Tomas, (1996)
The economic appraisal of environmental projects and policies : a practical guide ; [OECD-EDI Workshop in Paris in July 1994]
Winpenny, James T., (1995)
Economics and decision making for environmental quality
Conner, James Richard, (1974)
Ekologija i ikonomika
Božinov, Todor B., (1990)