@article{KemmlerStengelKohl2016,
  author    = {Wolfgang Kemmler and Simon von Stengel and Matthias Kohl},
  title     = {Exercise frequency and bone mineral density development in exercising postmenopausal osteopenic women. Is there a critical dose of exercise for affecting bone? Results of the Erlangen Fitness and Osteoporosis Prevention Study},
  series   = {Bone},
  volume    = {89.2016},
  issn      = {8756-3282},
  doi       = {10.1016/j.bone.2016.04.019},
  pages     = {1 -- 6},
  year      = {2016},
  language  = {en}
}