Columbia subject headings:
Control theory--Congresses.
Nonlinear theories--Congresses.
System analysis--Congresses.
Harvard subject headings:
Control theory--Congresses.
Nonlinear control theory--Congresses.
Nonlinear theories--Congresses.
System analysis--Congresses.
Princeton subject headings:
Control theory--Congresses.
Nonlinear theories--Congresses.
System analysis--Congresses.