1. Integrated Taxonomic Information System (Itis): http://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=504025)
2. International Plant Names Index (IPNI):http://www.ipni.org/ipni/advPlantNameSearch.do?find_family=fabaceae&find_genus=ononis+&find_species=spinosa
3. Tela botanica: http://www.tela-botanica.org/bdtfx-nn-44891-synthese
4. Guinochet M, Vilmorin R (1973–1984) -Flore de France- Paris: Centre national de la recherche scientifique
5. Wichtl M, Anton R (2003) Plantes thérapeutiques, tradition, pratique officinale, science et thérapeutique (2e édition) EM Inter / Tec & Doc, Paris