@article{ŘičanPialekAlmironetal.2023,
  author    = {Oldřich Ř{\´i}čan and Lubom{\´i}r Pi{\´a}lek and Adriana Almir{\´o}n and Jorge Casciotta},
  title     = {Description of two new species forming a sympatric species pair of Crenicichla (Teleostei: Cichlidae) endemic to the Piray Guaz{\´u} River in the Paran{\´a} River Basin, Misiones, Argentina and belonging to the C. mandelburgeri species complex},
  journal   = {European journal of taxonomy},
  volume    = {2023},
  number    = {879},
  pages     = {38 -- 63},
  doi       = {10.5852/ejt.2023.879.2159},
  year      = {2023},
}