Titelangaben
Liede-Schumann, Sigrid:
Phylogenetic study of the African members of Cynanchum (Apocynaceae - Asclepiadoideae).
In: Systematic Botany.
Bd. 22
(1997)
Heft 2
.
- S. 347-372.
ISSN 1548-2324
DOI: https://doi.org/10.2307/2419462