1. Alekseeva-Popova, N.V., Toxicity of Zinc for High Plants, in Ustoichivost’ k tyazhelym metallam dikorastushchikh vidov (Resistance of Wild Species to Heavy Metals), Leningrad: Lenuprizdat, 1991, pp. 23–32.
2. Alekseenko, V.A., Geokhimiya landshafta i okruzhaushchaya sreda (Landscape Geochemistry and Environment), Moscow: Nedra, 1990, 142 p.
3. Alriksson, A. and Eriksson, H.M., Distribution of Cd, Cu, Pb and Zn in Soil and Vegetation Compartments in Stands of Five Boreal Tree Species in N.E. Sweden, Water, Air & Soil Pollution: Focus, 2001, vol. 1, nos. 3–4, pp. 461–475.
4. Avessalomova, I.A., Geokhimicheskie pokazateli pri izuchenii landshaftov (Geochemical Indexes in Study of Landscapes), Moscow: Izd. MGU, 1987, 108 p.
5. Bargagli, R., Biogeokhimiya nazemnykh rastenii (Biogeochemistry of Land Plants), Moscow: GEOS, 2005, 457 p.