1. An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG II;APG;Bot. J. Linn. Soc.,2003
2. Molecular phylogenetic, karyological and palynological studies in subtribe Swertiinae (Gentianaceae);Chassot,2003
3. Gentianaceae;Gilg,1895
4. Systematics, biogeography, and natural history of the Neotropical Moon-gentians (Macrocarpaea: Gentianaceae);Grant,2003
5. Phylogenetic relationships within the subtribe Chironiinae (Gentianaceae), with a particular focus on the evolutionary trends and biogeographic patterns of the genus Centaurium Hill s. l;Mansion,2001