Comparative study
Köhl M & Päivinen R
Köhl, M., & Päivinen, R. (1997). Comparative study. In European Commission & European Forest Institute (Eds.), Study on European forestry information and communication system. Reports on forestry inventory and survey systems. Volume 2. Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, United Kingdom, Czech Republic, Hungary, Poland (pp. 1269-1328). Office for Official Publications of the European Communities.