B. Páll-Gergely, V. Gojšina, S. Sajan, K. Meng, and N. A. Aravind, “Revision of the genus Metalycaeus Pilsbry, 1900 in the Himalayan region with description of five new species (Gastropoda, Cyclophoridae, Alycaeinae)”, EJT, vol. 1108, no. 1, pp. 1–66, Oct. 2026.