18
Krüger, H., & Levy, R. (2001). Linking life courses, work and the family:
Theorising a not so visible nexus between women and men. Canadian Journal
of Sociology/Cahiers Canadiens de Sociologie, 26, 145–166.
Kuhn, M. H. (1964). The reference group reconsidered. The Sociological
Quarterly, 5, 5–21.
Levy, R., & Widmer, E. D. (2013). Gendered life courses between standardization
and individualization: A European approach applied to Switzerland (Vol. 18).
Münster: LIT Verlag.
Lin, N., Fu, Y., & Hsung, R. M. (2001). The position generator: Measurement
techniques for investigations of social capital. In N. Lin, K. Cook, & R. S.
Burt (Eds.), Social capital: Theory and research (pp. 57–81). New York: Aldine
de Gruyter.
Morgan, D. (2009). Acquaintances: The space between intimates and strangers.
Maidenhead: Open University Press.
Musial, M. (2013). Intimacy and modernity. Modernization of love in the west-
ern culture. Studia Europaea Gnesnensia, 7, 157–168.
Pahl, R., & Spencer, L. (2004). Personal communities: Not simply families of
‘fate’ or ‘choice’. Current Sociology, 52(2), 199–221.
Popenoe, D. (1988). Disturbing the nest: Family change and decline in modern
societies. New York: A. de Gruyter.
Sapin, M., Spini, D., & Widmer, E. (2007). Les parcours de vie: de l’adolescence
au grand âge, Collection le savoir suisse (Vol. 39). Lausanne: Presses polytech-
niques et universitaires romandes.
Surra, C. A., & Milardo, R. M. (1991). The social psychological context of
developing relationships: Interactive and psychological networks. In W. H.
Jones & D. Perlman (Eds.), Advances in personal relationships (pp. 1–36).
London: Jessica Kingsley.
Wellman, B., & Potter, S. (1999). The elements of personal communities. In
B. Wellman (Ed.), Networks in the global village: Life in contemporary com-
munities (pp. 49–82). Boulder: Westview Press.
Widmer, E. D. (1997). Influence of older siblings on initiation of sexual inter-
course. Journal of Marriage and the Family, 59, 928–938.
Widmer, E. D. (2010). Family configurations. A structural approach to family
diversity. London: Ashgate.
Widmer, E. D. (2016). Reedition. Family configurations. A structural approach to
family diversity. London: Routledge.
Widmer, E. D., Aeby, G., & Sapin, M. (2013). Collecting family network data.
International Review of Sociology, 23(April), 37–41.
E.D. Widmer et al.