@article{RodenFriedrichEtzleretal.2021,
  author    = {Ingo Roden and Esther Kamala Friedrich and Sonja Etzler and Emily Frankenberg and Gunter Kreutz and Stephan Bongard},
  title     = {Development and preliminary validation of the Emotions while Learning an Instrument Scale (ELIS)},
  journal   = {PLOS ONE},
  volume    = {16},
  number    = {8, art. e0255019},
  pages     = {1 -- 21},
  doi       = {10.1371/journal.pone.0255019},
  year      = {2021},
}