@article{LueckingBruecknerAbramietal.2021,
  author    = {Andy L{\"u}cking and Sebastian Br{\"u}ckner and Giuseppe Abrami and Tolga Uslu and Alexander Mehler},
  title     = {Computational linguistic assessment of textbooks and online texts by means of threshold concepts in economics},
  journal   = {Frontiers in education},
  volume    = {5},
  number    = {Article 578475},
  doi       = {10.3389/feduc.2020.578475},
  url       = {https://www.frontiersin.org/articles/10.3389/feduc.2020.578475/abstract},
  year      = {2021},
}