1. Bergquist SG (2009) The glacial history and development of Michigan. Michigan State University, East Lansing, pp 1–12
2. Bowden JW, Bolland MDA, Posner AP, Quirk JP (1974a) Generalized model for anion and cation adsorption at oxide surfaces. Nat Phys Sci 245:81–83
3. Bowden JW, Posner AP, Quirk JP (1974b) A model for ion adsorption on variable charge surfaces. The 10th International Congress of Soil Science. Moscou II:29–36
4. Bowden JW, Nagarajah S, Barrow NJ, Posner AM, Quirk JP (1980a) Describing the adsorption of phosphate, citrate, and selenite on a variable charge mineral surface. Aust J Soil Res 18:49–60
5. Bowden JW, Posner AP, Quirk JP (1980b) Adsorption and charging phenomena in variable charge soils. In: Theng BKG (ed) Soils with variable charge. New Zealand Soil Society, Lower Hutt, pp 147–166