@article{FuezekiSchroederReeretal.2022,
  author    = {Eszter F{\"u}z{\´e}ki and Jan Schr{\"o}der and R{\"u}diger Reer and Jan David Alexander Groneberg and Winfried Banzer},
  title     = {Going online? - Can online exercise classes during COVID-19-related lockdowns replace in-person offers?},
  journal   = {International journal of environmental research and public health},
  volume    = {19},
  number    = {4, art. 1942},
  pages     = {1 -- 13},
  doi       = {10.3390/ijerph19041942},
  year      = {2022},
}