Similar title to Lutz, W. ORCID: https://orcid.org/0000-0001-7975-8145, Skirbekk, V., & Testa, M.R. (2007). The Low-Fertility Trap Hypothesis: Forces that May Lead to Further Postponement and Fewer Births in Europe. IIASA Research Report (Reprint). IIASA, Laxenburg, Austria: RP-07-001. Reprinted from Vienna Yearbook of Population Research 2006; 4:167-192 (2006) 10.1553/populationyearbook2006s167.