LÝ, NGỌC-SÂM, and HANS- JUERGEN TILLICH. 2016. “<em>Aspidistra averyanovii</em> and <em>A. Parviflora </Em>(Asparagaceae), Two New Species Central Vietnam”. Phytotaxa 282 (1):53–60. https://doi.org/10.11646/phytotaxa.282.1.6.