D. D. Hong, H. M. Hien, H. L. Anh, and C. V. Thuoc, “Taxonomy of Prorocentrum sp. sampled from Hai Phong city by basing on the nucleotide sequences of the 18S rDNA and ITS1-5.8S-ITS2 gene fragments”, AJB, vol. 28, no. 1, pp. 81–91, Mar. 2006.