@phdthesis{Spiess2017,
  type      = {Master Thesis},
  author    = {Anna Spie{\"s}},
  title     = {Aktivit{\"a}t gibt Energie},
  address   = {Offenburg},
  pages     = {53},
  year      = {2017},
  abstract  = {Der Guide zur aktiven Pausen- und Arbeitsgestaltung},
  language  = {de}
}