@conference{90ba672222e04adcb09570193427c591,
title = "Spending Time Together: Changes in Joint Activities of Couples over Four Decades",
author = "M.B.J. Voorpostel and J. Gershuny and {van der Lippe}, T.",
note = "Paper presented at the International Association of Time Use Research Conference; Paper presented at the International Association of Time Use Research Conference ; Conference date: 17-10-2007 Through 19-10-2007",
year = "2007",
month = oct,
day = "17",
language = "Undefined/Unknown",
}