@article{biblio-7661351574004161981,
  author    = {Jirka Hana and Alexandr Rosen and Barbora Štindlová and Jan Štěpánek},
  year      = 2014,
  title     = {Building a learner corpus},
  journal   = {Language Resources and Evaluation},
  volume    = {47},
  pages     = {741--752},
  issn      = {1574-020X},
}