MacKellar, L. <https://pure.iiasa.ac.at/view/iiasa/2146.html>  (2006).  Europe's future generations: Closing thoughts.    In:  The New Generations of Europeans: Demongraphy and families in the enlarged European Union. Eds. Lutz, W. <https://pure.iiasa.ac.at/view/iiasa/190.html> ORCID: https://orcid.org/0000-0001-7975-8145 <https://orcid.org/0000-0001-7975-8145>, Richter, R., & Wilson, C., pp. 353-374 Earthscan/Routledge.  ISBN 1844073513;978-184977591-5 10.4324/9781849775915 <https://doi.org/10.4324/9781849775915>.