T. G. Tran, C. T. Bui, L. Vu, D. K. T. Le, H. N. V. Ho, and B. Páll-Gergely, “Rediscovery and redescription of an endemic land snail from Vietnam: Cyclotus simonianus (Heude, 1886) with its phylogenetic position”, Zootaxa, vol. 5785, no. 1, pp. 134–151, Mar. 2026.