E. Mihalik, K. Kálmán, A. Medvegy, K. Gocs, J. Cservenka, and A. Németh, “Studies on some seed traits of Iris pumila L., Adonis vernalis L., Primula veris Huds. and Alkanna tinctoria (L.) Tausch”., Int. j. hortic. sci., vol. 7, no. 2, pp. 36–40., Jun. 2001, doi: 10.31421/IJHS/7/2/263.