2
Published 2001
OECD Publishing

3
by van Stipriaan, Alex
Published 1993
Brill

4
by van Praag, C.S.
Published 1989
WRR

5
by Adriaansens, H.P.M.
Published 1992
WRR

6
by Oterdoom, T.
Published 1996
WRR

7
by Went, R.C.P.M.
Published 2010
WRR

8
by WRR
Published 1977
WRR

10
by van Driel, G.J.
Published 1983
WRR

11

12
by Trommel, W.A.
Published 1987
WRR

13
by Boogaarts, I.
Published 1989
WRR

14
by van Paridon, C.W.A.M.
Published 1990
WRR

15
by WRR
Published 1990
WRR

16
by Elfering, T.
Published 1991
WRR

17
by de Jong, W.R.
Published 1988
WRR

18
by WRR
Published 1987
WRR

19
by Kamps, J.A.
Published 1988
WRR

20
by Knoester, A.
Published 1989
WRR