1. The potential of crushed rocks and mine tailings as slow-releasing K fertilizers assessed by intensive cropping with Italian ryegrass in different soil types;Bakken;Nutrient Cycling in Agroecosystems,1997
2. Crushed rocks and mine tailings applied as K fertilizers on grassland;Bakken;Nutrient Cycling in Agroecosystems,2000
3. The scenario approach to possible futures for oil and natural gas;Bentham;Energy Policy,2014
4. Potassium-rich sediments in the Cambrian of Northwest Scotland;Bowie;Transactions of the Institution of Mining and Metallurgy,1966
5. Data Set of World Phosphate Mines, Deposits, and Occurrences – Part A. Geologic Data;Chernoff,2002