Bruno Glaser: Prehistorically modified soils of central Amazonia: a model for sustainable agriculture in the twenty-first century. In: Philosophical Transactions of the Royal Society B: Biological Sciences. 362. Jahrgang, Nr.1478, 28. Februar 2007, ISSN0962-8436, S.187–196, doi:10.1098/rstb.2006.1978.
Bruno Glaser: Prehistorically modified soils of central Amazonia: a model for sustainable agriculture in the twenty-first century. In: Philosophical Transactions of the Royal Society B: Biological Sciences. 362. Jahrgang, Nr.1478, 28. Februar 2007, ISSN0962-8436, S.187–196, doi:10.1098/rstb.2006.1978.