1
Published: 1978
Superior document: Research memorandum / International Institute for Applied Systems Analysis [19]78,36
2
Published: [2012]
Superior document: Enthalten in Special issue on "Reproductive decision-making" ; Guest eds.: Philip S. Morgan ... Wien, [2012] S. [37] - 45 Vienna Yearbook of population research ; 2011
3
Published: 2006
Superior document: Population studies / Council of Europe 49