@article{DittmannKohliLachmannKliegletal.1991,
  author    = {Dittmann-Kohli, Freya and Lachmann, Margic and Kliegl, Reinhold and Baltes, Paul B.},
  title     = {Effects of cognitive training and testing on intellectual efficacy beliefs in elderly adults},
  year      = {1991},
  language  = {en}
}