1. Agrawal, M., & Agrawal, S. B. (1989). Phytomonitoring of air pollution around a thermal power plant. Atmospheric Environment., 23(4), 763–769.
2. Anikeev, D. R, Babushkina, L. G., & Zueva, G. V. (2000). The state of the reproductive system of Scotch pine with aerotechnogenic contamination. Yekaterinburg. 81 p.
3. Anonymous. (1962). Agroclimaticheskiy spravochnik po Sverdlovskoy oblasti (Sverdlovsk Region Agroclimatic Data Sheet)/Ural. Hydrometeorological Service Bureau - Leningrad: Hydrometeoizdat, p. 196 (in Russian).
4. Anonymous. (1964). Agrokhimicheskie Kharacteristikie pochv SSSR. Rayony Urala (agrochemical characteristic of soils in the USSR. Regions of Ural). Moskva: Nauka, p. 196 (in Russian).
5. Ayari, A., Meftahi, M., Zammeli, F., & Khouja, M. L. (2016). Seed production variability of Aleppo pine (Pinus halepensis mill.) within Korbus arboretum (north east of Tunisia). Global Journal of Botanical Science., 4, 20–23.