@article {6922, title = {Taxonomic revision of Geranium sections Batrachioidea and Divaricata (Geraniaceae)}, journal = {Ann. Missouri Bot. Gard}, volume = {85}, year = {1998}, month = {1998///}, pages = {594 - 630}, author = {C. Aedo and J.J. Aldasoro and C. Navarro} }