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“Comparison of Lead Extraction and Detection Procedures for Six Canadian Soils”,
Communications in Soil Science and Plant Analysis, vol. 43, no. 17, pp. 2303 - 2313, 2012.
V. D. Zheljazkov, Astatkie, T., Jeliazkova, E. A., and Schlegel, V.,
“Distillation time alters essential oil yield, composition, and antioxidant activity of male Juniperus scopulorum trees”,
Journal of Oleo Science, vol. 61, no. 10, pp. 537 - 546, 2012.
V. D. Zheljazkov, Vick, B. A., Baldwin, B. S., Buehring, N., Astatkie, T., and Johnson, B.,
“EFFECT OF PLANTING DATE, NITROGEN RATE, AND HYBRID ON SUNFLOWER”,
Journal of Plant Nutrition, vol. 35, no. 14, pp. 2198 - 2210, 2012.