@unpublished{FischerSixtusGoebel2015,
  author  = {Martin H. Fischer and Elena Sixtus and Silke M. G{\"o}bel},
  title   = {Commentary: A pointer about grasping numbers},
  institution = {Strukturbereich Kognitionswissenschaften},
  pages     = {3},
  year    = {2015},
}