1
by van Stipriaan, Alex
Published 1993
Brill

2
by Feenstra, J.J.
Published 1988
WRR

3
by van der Wal, H.
Published 1985
WRR

8
by Meeus, J.
Published 1991
WRR

9
by Louwes, S.L.
Published 1986
WRR

10
by van Stipriaan, A.
Published 1993
Brill