Enlace original:
https://wedocs.unep.org//handle/20.500.11822/29213
United Nations Environment Programme
,
[Report of the Scientific Advisory Committee for Terrestrial Ecosystems Monitoring and Assessment - Prague, Czechoslovakia, 9 - 11 September 1992. GEMS Report Series No. 16]
,
Report of the Scientific Advisory Committee for Terrestrial Ecosystems Monitoring and Assessment - Prague, Czechoslovakia, 9 - 11 September 1992. GEMS Report Series No. 16