«Hairy Vetch». Guide to poisonous plants. Besøkt 8. august 2021.
doi.org
Tsunashi Kamo; Masae Sato; Kenji Kato; Syuntaro Hiradate; Eri Nakajima; Yoshiharu Fuji; Mitsuru Hirota (23.09.2006). «Quantification of Cyanamide Contents in Herbaceous Plants». Bioscience, Biotechnology, and Biochemistry (på engelsk). 70 (9): 2310–2312. doi:10.1271/bbb.60171. Besøkt 8. august 2021. «Of the 101 species tested, cyanamide was detected only in two Vicia species. Vicia villosa and … V. cracca.»
oup.com
academic.oup.com
Tsunashi Kamo; Masae Sato; Kenji Kato; Syuntaro Hiradate; Eri Nakajima; Yoshiharu Fuji; Mitsuru Hirota (23.09.2006). «Quantification of Cyanamide Contents in Herbaceous Plants». Bioscience, Biotechnology, and Biochemistry (på engelsk). 70 (9): 2310–2312. doi:10.1271/bbb.60171. Besøkt 8. august 2021. «Of the 101 species tested, cyanamide was detected only in two Vicia species. Vicia villosa and … V. cracca.»