Fischer, E.; Schäferhoff, B.; Müller, K. F.

The New Monotypic Genus Bardotia (Orobanchaceae) from Madagascar and Remarks on the Phylogenetic Relationships of the African and Madagascan Genera Parastriga, Radamaea, Rhamphicarpa and Sieversandreas

. Phytotaxa 2012, 46, 19–33.