Maliszewska A, Holzer-Żelażewska D. Reproductive difficulties in the context of declining fertility: The role of the Generations and Gender Survey. SD [Internet]. 2025 Dec. 30 [cited 2026 Jan. 10];185(1-2):55-77. Available from: https://econjournals.sgh.waw.pl/SD/article/view/5189