MUNTEAN, L. S., SALONTAI, A., TAMAS, M., BOTEZ, C., CERNEA, S., MORAR, G., VAIDA, F. and PARV, M. (1995) “Research concerning the biology of Cnicus benedictus L. species”, Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 25(1), pp. 109-114. doi: 10.15835/nbha251321.