?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Kunst&rft.aufirst=Sander+A.M.&rft.au=Kunst%2C+Sander+A.M.&rft.date=2021&rft.title=Childless+elderly%3A+The+influence+of+not+having+children+on+your+mental+health&rft.degree=Bachelor&rft.tpages=20