2 literature references for Astragalus caprinus L.:

Author: Podlech,D.
Year: 1988
Title:
Source: Mitt.Bot.Staatss.Munchen 25:1-924.Revision von Astragalus...
Author: Greuter,W. et al. (Eds.)
Year: 1989
Title:
Source: Med-Checklist Vol.4 (published)