V. D. Zheljazkov, Astatkie, T., Jeliazkova, E. A., Tatman, A. O., and Schlegel, V.,
“Distillation time alters essential oil yield, composition and antioxidant activity of female Juniperus scopulorum trees”,
Journal of Essential Oil Research, vol. 25, no. 1, pp. 62 - 69, 2013.
V. D. Zheljazkov, Astatkie, T., Jeliazkova, E. A., Tatman, A. O., and Schlegel, V.,
“Distillation time alters essential oil yield, composition, and antioxidant activity of female Juniperus Scopulorum trees”,
Journal of Essential Oil Research, vol. 25, pp. 62-69, 2013.
V. D. Zheljazkov, Topalov, V., Yankov, B., Terziev, J., and Dimitrov, I.,
“Changes in the quality of Mentha rhizome as depending on the time of overground mass harvesting and the method of weed control”,
Higher Institute of Agriculture – Plovdiv, Scientific Works, vol. 37, pp. 239-247, 1992.
V. D. Zheljazkov, Cantrell, C. L., Astatkie, T., and M. Ebelhar, W.,
“Productivity, Oil Content, and Composition of Two Spearmint Species in Mississippi”,
Agronomy Journal, vol. 102, no. 1, p. 129, 2010.