Říčan, O., L. Piálek, A. Almirón, and J. Casciotta. “Description of Two New Species Forming a Sympatric Species Pair of Crenicichla (Teleostei: Cichlidae) Endemic to the Piray Guazú River in the Paraná River Basin, Misiones, Argentina and Belonging to the C. Mandelburgeri Species Complex”. European Journal of Taxonomy, vol. 879, no. 1, July 2023, pp. 38–63, doi:10.5852/ejt.2023.879.2159.