Högnäs, Robin, and Jason Thomas. 2016. “Birds of a Feather Have Babies Together? Family Structure Homogamy and Union Stability Among Cohabiting Parents”. Journal of Family Issues 37 (1): 29-52. Referenced from jfi.sagepub.com: Birds of a Feather Have Babies Together? Family Structure Homogamy and Union Stability Among Cohabiting Parents.