@article{GrewenigLergetporerWerneretal.2021,
  author    = {Elisabeth Grewenig and Philipp Lergetporer and Katharina Werner and Ludger Woessmann and Larissa Zierow},
  title     = {COVID-19 and educational inequality: How school closures affect low- and high-achieving students},
  journal   = {European economic review},
  volume    = {140},
  pages     = {1 -- 21},
  doi       = {10.1016/j.euroecorev.2021.103920},
  year        = {2021},
}