Columbia subject headings:
Consumer behavior--United States--Mathematical models--Congresses.
Demand functions (Economic theory)--Congresses.
Telecommunication--United States--Mathematical models--Congresses.
Harvard subject headings:
Consumer behavior--United States--Mathematical models--Congresses.
Demand functions (Economic theory)--Congresses.
Telecommunication--United States--Mathematical models--Congresses.
Princeton subject headings:
Consumer behavior--United States--Mathematical models--Congresses.
Demand functions (Economic theory)--Congresses.
Telecommunication--United States--Mathematical models--Congresses.