Functional disability and the role of children in U.S. older adults' core discussion networks. - Markus H. Schafer; Laura Upenieks (Netw. Sci., 2021)

Keep around, drop, or revise? exploring what becomes of difficult ties in personal networks. - Emmanuel Kyeremeh; Markus H. Schafer (Soc. Networks, 2024)

What accompanies companionship? Reassessing personal networks and loneliness among young and older adults. - Markus H. Schafer; James S. Malo; Brandon M. Brown; Meagan L. McGourty (Soc. Networks, 2026)