Fischer, E., Schäferhoff, B., & Müller, K. F. (2012).

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, 46(1), 19–33. https://doi.org/10.11646/phytotaxa.46.1.4