V. D. Zheljazkov, Astatkie, T., and Hristov, A. N.,
“Lavender and hyssop productivity, oil content, and bioactivity as a function of harvest time and drying”,
Industrial Crops and Products, vol. 36, no. 1, pp. 222 - 228, 2012.
A. Dobreva, Kovatcheva, N., Astatkie, T., and Zheljazkov, V. D.,
“Improvement of essential oil yield of oil-bearing (Rosa damascena Mill.) due to surfactant and maceration”,
Industrial Crops and Products, vol. 34, no. 3, pp. 1649 - 1651, 2011.
H. Y. Sintim, Burkhardt, A., Gawde, A., Cantrell, C. L., Astatkie, T., Obour, A. E., Zheljazkov, V. D., and Schlegel, V.,
“Hydrodistillation time affects dill seed essential oil yield, composition, and bioactivity”,
Industrial Crops and Products, vol. 63, pp. 190 - 196, 2015.
V. D. Zheljazkov, Astatkie, T., and Schlegel, V.,
“Hydrodistillation extraction time effect on essential oil yield, composition, and bioactivity of coriander oil”,
Journal of Oleo Science, vol. 63, no. 9, pp. 857 - 865, 2014.
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.
V. D. Zheljazkov, Vick, B., Ebelhar, W., Buehring, N., and Astatkie, T.,
“Effect of N on yield and chemical profile of winter canola in Mississippi”,
Journal of Oleo Science, vol. 62, no. 7, pp. 453 - 458, 2013.
V. D. Zheljazkov, Cantrell, C. L., Astatkie, T., Schlegel, V., Jeliazkova, E. A., and Lowe, D.,
“The Effect of Coal-Bed Methane Water on Spearmint and Peppermint”,
Journal of Environment Quality, vol. 42, no. 6, p. 1815, 2013.
J. Bufalo, Zheljazkov, V. D., Cantrell, C. L., Astatkie, T., Ciampa, L., and Jeliazkova, E. A.,
“Diurnal effects on spearmint oil yields and composition”,
Scientia Horticulturae, vol. 182, pp. 73 - 76, 2015.
V. D. Zheljazkov, Horgan, T., Astatkie, T., and Schlegel, V.,
“Distillation Time Modifies Essential Oil Yield, Composition, and Antioxidant Capacity of Fennel (Foeniculum vulgare Mill)”,
Journal of Oleo Science, vol. 62, no. 9, pp. 665 - 672, 2013.
V. D. Zheljazkov, Cantrell, C. L., Astatkie, T., and Jeliazkova, E. A.,
“Distillation Time Effect on Lavender Essential Oil Yield and Composition”,
Journal of Oleo Science, vol. 62, no. 4, pp. 195 - 199, 2013.