@article{BrandEkkekakis2017,
  author    = {Ralf Brand and Panteleimon Ekkekakis},
  title     = {Affective-Reflective Theory of physical inactivity and exercise},
  journal   = {German Journal of Exercise and Sport Research},
  series    = {Foundations and preliminary evidence},
  volume    = {48},
  number    = {1},
  pages     = {48 -- 58},
  doi       = {10.1007/s12662-017-0477-9},
  year      = {2017},
}