@article{HaaseGregoEroessetal.2021,
  author    = {Martin Haase and Jozef Grego and Zolt{\´a}n P{\´e}ter Er{\"o}ss and Roland Farkas and Zolt{\´a}n Feh{\´e}r},
  title     = {On the origin and diversification of the stygobiotic freshwater snail genus Hauffenia (Caenogastropoda: Hydrobiidae) with special focus on the northern species and the description of two new species},
  journal   = {European journal of taxonomy},
  volume    = {2021},
  number    = {775},
  pages     = {143 -- 184},
  doi       = {10.5852/ejt.2021.775.1555},
  year      = {2021},
}