1. Illingworth, Patricia, and Wendy E. Parmet (eds.). 2012. The role of solidarity in bioethics. Special issue, Bioethics 26, no. 7.
2. Prainsack, Barbara, and Alene Buyx. 2011. Solidarity: Reflections on an emerging concept in bioethics. London: Nuffield Council on Bioethics, Nuffield Council.
3. Companje, Karel-Peter, R.H.M. Hendriks, Karel Veraghtert, and Brigitte Widdershoven. 2009. Two centuries of solidarity: German, Belgian and Dutch social health insurance 1770–2008. Amsterdam: Aksant.
4. ter Meulen, Ruud, Wil Arts, and Ruud Muffels (eds.). 2001. Solidarity in health and social care. Dordrecht: Kluwer Academic Publishers.
5. ter Meulen, Ruud, and Rob Houtepen. 2012. Solidarity. In Encyclopaedia of applied ethics, ed. Ruth Chadwick, 198–205. London: Elsevier.