1. Studies on Petradoria (Compositae): anatomy, cytology, taxonomy;Anderson;Trans. Kans. Acad. Sci.,1963
2. A revision of the Aethionema saxatile complex (Brassicaceae);Andersson;Willdenowia,1983
3. Reproductive ecology of Thymelaea velutina (Thymelaeaceae)-Factors contributing to the maintenance of heterocarpy;Bandera;Plant System. Evol.,2006
4. Taxonomic significance of cypselar features in some species of Vernonia (Vernonieae Asteraceae);Basak;J. Hill Res.,2003
5. Pappus morphology and terminology in Australian and New Zealand thistles (Asteraceae, tribe Cardueae);Bean;Austrobaileya,2001