1. Intrafloral ecology;Baker;A. Rev. Ent.,1968
2. Breeding systems and floral biology of the Umbelliferae or evidence for specialization in unspecialized flowers;Bell,1971
3. The umbel as a reproductive unit in the Apiaceae;Bell,1978
4. Chemical basis for the relationship between Ophrys orchids and their pollinators. III. Volatile compounds of species in the Ophrys section Fuciflorae and Bombyliflorae as insect mimetic attractants/excitants;Bork-Karlson;Chem. Scripta,1987
5. Chemical and ethological studies of pollination in the genus Ophrys (Orchidaceae);Borg-Karlson;Phytochemistry,1990