@article {618, title = {Monographic studies in the genus Annona L. (Annonaceae): Inclusion of the genus Rollinia A.St. Hil.}, journal = {Annalen des Naturhistorischen Museums in Wien Serie B Botanik und Zoologie}, volume = {108}, year = {2007}, pages = {191-205}, author = {Rainer, H.} } @article {617, title = {Nomenclatural and taxonomic notes on Annona (Annonaceae)}, journal = {Annalen des Naturhistorischen Museums in Wien Serie B Botanik und Zoologie}, volume = {103}, year = {2001}, pages = {513-524}, author = {Rainer, H.} }