V. Steenkamp, M. C. Gouws, M. Gulumian, E. E. Elgorashi, J. van Staden: Studies on antibacterial, anti-inflammatory and antioxidant activity of herbal remedies used in the treatment of benign prostatic hyperplasia and prostatitis. In: Journal of Ethnopharmacology. Band103, Nr.1, Januar 2006, S.71–75, doi:10.1016/j.jep.2005.07.007, PMID 16122891.
efloras.org
Jiarui Chen, Peter C. Hoch, Peter H. Raven: Epilobium Linnaeus In: Wu Zheng-yi, Peter H. Raven, Deyuan Hong (Hrsg.): Flora of China. Volume 13: Clusiaceae through Araliaceae, Science Press und Missouri Botanical Garden Press, Beijing und St. Louis 2007, ISBN 978-1-930723-59-7. S. 414 – textgleich online wie gedrucktes Werk.
V. Steenkamp, M. C. Gouws, M. Gulumian, E. E. Elgorashi, J. van Staden: Studies on antibacterial, anti-inflammatory and antioxidant activity of herbal remedies used in the treatment of benign prostatic hyperplasia and prostatitis. In: Journal of Ethnopharmacology. Band103, Nr.1, Januar 2006, S.71–75, doi:10.1016/j.jep.2005.07.007, PMID 16122891.