Schmidt، Mario (2008). "The Sankey Diagram in Energy and Material Flow Management - Part II: Methodology and Current Applications". Journal of Industrial Ecology. ج. 12 ع. 2: 173–185. DOI:10.1111/j.1530-9290.2008.00015.x. ISSN:1530-9290.
Schmidt، Mario (2008). "The Sankey Diagram in Energy and Material Flow Management - Part II: Methodology and Current Applications". Journal of Industrial Ecology. ج. 12 ع. 2: 173–185. DOI:10.1111/j.1530-9290.2008.00015.x. ISSN:1530-9290.