ŽNIDARČIČ, D., OSVALD, J., & TRDAN, S. (2004). Plant characteristics for distinction of red chicory (Cichorium intybus L. var. silvestre Bisch.) cultivars grown in central Slovenia. Acta Agriculturae Slovenica, 83(2), 251–260. https://doi.org/10.14720/aas.2004.83.2.15429