Greuter, W., Aghababian, M., & Wagenitz, G. (2005). Proposals to conserve the names Bellidiastrum, Berkheya, Euryops, Notobasis, Picnomom and Urospermum (Compositae) against six generic names of Vaillant ([Sonderdr.].). Internat. Bureau for Plant Taxonomy and Nomenclature.
Chicago-Zitierstil (17. Ausg.)Greuter, Werner, Mariam Aghababian, und Gerhard Wagenitz. Proposals to Conserve the Names Bellidiastrum, Berkheya, Euryops, Notobasis, Picnomom and Urospermum (Compositae) Against Six Generic Names of Vaillant. [Sonderdr.]. Vienna: Internat. Bureau for Plant Taxonomy and Nomenclature, 2005.
MLA-Zitierstil (9. Ausg.)Greuter, Werner, et al. Proposals to Conserve the Names Bellidiastrum, Berkheya, Euryops, Notobasis, Picnomom and Urospermum (Compositae) Against Six Generic Names of Vaillant. [Sonderdr.]. Internat. Bureau for Plant Taxonomy and Nomenclature, 2005.