Crossref Citations

1. The earliest record of the genus Cola (Malvaceae sensu lato: Sterculioideae) from the Late Oligocene (28–27 Ma) of Ethiopia and leaf characteristics within the genus
Aaron David Pan, Bonnie F. Jacobs
Plant Systematics and Evolution  vol: 283  issue: 3-4  first page: 247  year: 2009  
doi: 10.1007/s00606-009-0225-1