1
by van der Veen, H.
Published 1979
Brill

2
by van der Veen, H.
Published 1966
Brill

3
by van der Veen, H.
Published 1965
Brill

4
by van der Veen, S.
Published 1986
WRR

5
by van der Veen, S.
Published 1990
WRR