Abel, Nick2026-01-012026-01-010921-8009Bibtex:Abel_1997ORCID:/0009-0009-0142-3658/work/171151859https://hdl.handle.net/1885/733801772enMis-measurement of the productivity and sustainability of African communal rangelands: a case study and some principles from Botswana1997-11-0110.1016/s0921-8009(97)00048-70030717638