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.
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.