@article{SoemerSchiefele2019,
  author    = {Alexander Soemer and Ulrich Schiefele},
  title     = {Text difficulty, topic interest, and mind wandering during reading},
  journal   = {Learning and instruction : the journal of the European Association for Research on Learning and Instruction},
  volume    = {61},
  pages     = {12 -- 22},
  doi       = {10.1016/j.learninstruc.2018.12.006},
  year      = {2019},
}