Columbia subject headings:
Games--Psychological aspects--Congresses.
Interdisciplinary research--Congresses.
Metaphysics--Congresses.
Harvard subject headings:
Games--Psychological aspects--Congresses.
Interdisciplinary research--Congresses.
Metaphysics--Congresses
Princeton subject headings:
Games--Psychological aspects--Congresses.
Interdisciplinary research--Congresses.
Metaphysics--Congresses.