Columbia subject headings:
Electric automobiles--Technological innovations--Congresses.
Electric vehicle industry--Economic aspects--Congresses.
Electric vehicles--Congresses.
Urban transportation--Congresses.
Harvard subject headings:
Electric automobiles--Technological innovations--Congresses.
Electric vehicle industry--Economic aspects--Congresses.
Electric vehicles--Congresses
Urban transportation--Congresses
Princeton subject headings:
Electric vehicles--Congresses.
Electric vehicles--Government policy--Congresses.