A. Burkhardt, Sintim, H. Y., Gawde, A., Cantrell, C. L., Astatkie, T., Zheljazkov, V. D., and Schlegel, V.,
“Method for attaining fennel (Foeniculum vulgare Mill.) seed oil fractions with different compositions and antioxidant capacity”,
Journal of Applied Research on Medicinal and Aromatic Plants, vol. 2, pp. 87-91, 2015.