Bio-char Sequestration in Terrestrial Ecosystems A Review, Johannes Lehmann; John Gaunt; Marco Rondon , Mitigation and Adaptation Strategies for Global Change, Number 11, p.403-42, (2006) Abstract

Bio-Char Soil Management on Highly Weathered Soils in the Humid Tropics, Johannes Lehmann; Marco Rondon , p.517-540, (2006) Abstract

Slash and Char: a feasible alternative for soil fertility management in the Central Amazon?, Lehmann, Johannes; Da Silva, Jose Perier, Jr.; Rondon, Marco; Da Silva, Cravo Manoel; Greenwood, Jaqueline; Nehls, Thomas; Steiner, Christoph; Glaser, Bruno , 17th WCSS, 14/08/2002, Thailand, (2002)