Columbia subject headings:
Group theory--Congresses.
Lie algebras--Congresses.
Ordered algebraic structures.
Harvard subject headings:
Algebra--Congresses
Group theory--Congresses
Lie algebras--Congresses.
Ordered algebraic structures.
Princeton subject headings:
Algebra, Abstract--Congresses.
Group theory--Congresses.
Lie algebras--Congresses.