Columbia subject headings:
Harvard subject headings:
Conference papers and proceedings.
Leibniz, Gottfried Wilhelm, Freiherr von, 1646-1716--Congresses.
Metaphysics--Congresses
Presence (Philosophy)--Congresses.
Reality--Congresses
Princeton subject headings:
Leibniz, Gottfried Wilhelm, Freiherr von, 1646-1716--Congresses.
Metaphysics--Congresses.
Reality--Congresses.