Columbia subject headings:
Harvard subject headings:
Koninklijke Nederlandse Akademie van Wetenschappen--Congresses.
Medical sciences--Congresses.
Physical sciences--Congresses.
Science--Congresses
Princeton subject headings:
Koninklijke Nederlandse Akademie van Wetenschappen--Congresses.
Koninklijke Nederlandse Akademie van Wetenschappen.
Medical sciences--Congresses.
Physical sciences--Congresses.
Science--Congresses.