@article{BelitskiGuentherKritikosetal.2021,
  author    = {Maksim Belitski and Christina Guenther and Alexander Kritikos and Adriaan R. Thurik},
  title     = {Economic effects of the COVID-19 pandemic on entrepreneurship and small businesses},
  journal   = {Small business economics},
  volume    = {58},
  number    = {2},
  pages     = {593 -- 609},
  doi       = {10.1007/s11187-021-00544-y},
  year      = {2021},
}