1. Alberta Agriculture Rural Development, 2010. Current and Historical Alberta Weather Station Data Viewer. http://www.agric.gov.ab.ca/acis/alberta-weather-data-viewer.jsp.
2. Alberta Agriculture and Rural Development, 2014. Online Soil Information Viewer. http://www4 agric.gov.ab.ca/agrasidviewer/.
3. Alberta Environment, 2009. Specified Gas Emitters Regulation: Quantification Protocol for Tillage System Management. Version 1.2.
4. A comparative examination of the efficiency of sequestering carbon in US agricultural soils;Antle;Am. J. Altern. Agr.,2002
5. Short-term influence of tillage on CO2 fluxes from a semi-arid soil on the Canadian Prairies;Ellert;Soil Till. Res.,1999