Ann Pharm Fr. 1980 ; 38(6): 493-9.

[Evaluation of antibacterial properties of marigold flowers (Calendula officinalis L.) and mother homeopathic tinctures of C. officinalis L. and C. arvensis L. (author's transl)]

Dumenil G, Chemli R, Balansard C, Guiraud H, Lallemand M.