2
documentation of national surveys on religious and secular attitudes in 1979, 1985 and 1990
1992
4
documentation of a national survey on religious and secular attitudes in 1979
5
documentation of a national survey on religious and secular attitudes in 1985
6
documentation of a national survey on religious and secular attitudes in 1990
1992
7
Tegen religieuze privileges in wetten, regels, praktijken, gewoonten en attitudes
9