@phdthesis{Maxin2012,
  author      = {Leena Maren Maxin},
  title       = {Activities in Retirement: The Role of Motivational and Situational Characteristics},
  type        = {doctoralthesis},
  school      = {Leuphana Universit{\"a}t L{\"u}neburg, Universit{\"a}tsbibliothek der Leuphana Universit{\"a}t L{\"u}neburg},
  year        = {2012},
}