2 literature references for Astragalus stocksii var. elongatus Bunge:

Author: Ali,S.I.
Year: 1977
Title:
Source: Papilion. In:Flora of West Pakistan, No 100.
Author: Podlech,D.
Year: 1975
Title:
Source: Mitt.Bot.Munchen 12:153-166. Rev.Sekt.Caraganella Gen.Astrag