Pluhár, Zs., J. Bernáth, and J. Hermándy-Berencz. 2001. “Introduction of Alkanet (Alkanna Tinctoria (L.) Tausch), a Traditional Dye Plant into Cultivation”. International Journal of Horticultural Science 7 (2):41-46. https://doi.org/10.31421/IJHS/7/2/264.