@article{MayrBaltesBorcheltetal.1994,
  author    = {Mayr, Ulrich and Baltes, Magret and Borchelt, Markus and Mayr, Ulrich and Baltes, Magret},
  title     = {Everyday competence in old and very old age : an interdisciplinary perspective},
  year      = {1994},
  language  = {en}
}