Helfferich, Cornelia / Gerstner, Dominik / Knittel, Tilmann / Pflügler, Carina / Schmidt, Franziska (2021) The European Journal of Contraception & Reproductive Health Care DOI: 10.1080/13625187.2020.1870951
Helfferich, Cornelia / Hessling, Angelika / Klindworth, Heike / Wlosnewski, Ines (2014): In: Advances in Life Course Research 5 http://dx.doi.org/10.1016/j.alcr.2014.04.002
https://cornelia-helfferich.de/wp-content/uploads/2021/07/Unintended_pregnancies_and_their_outcomes_the_life_course_perspective.pdf https://cornelia-helfferich.de/wp-content/uploads/2021/07/Unintended_pregnancies_over_the_lifecourse.pdf
Helfferich, Cornelia (2012): In: Müller, Ursula / Oechsle, Mechthild (Hg.): Fatherhood in Late Modernity. Opladen / Farmington Hills MI: Barbara Budrich, 147-164 “A real man is a mature, older man”. Meuser here cites Ferdinand Tönnies, a late-19th-century sociologist, who saw
Hellferich, Cornelia; Kavemann, Barbara; Rabe Heike (2011). Project Management BKA Wiesbaden: Toll, Claudia; Flach, Gerhard https://cornelia-helfferich.de/wp-content/uploads/2022/01/Determinants.pdf