Columbia subject headings:
Energy conservation--Austria--Periodicals.
Energy policy--Austria--Periodicals.
Power resources--Austria--Periodicals.
Harvard subject headings:
Energy conservation--Austria--Periodicals.
Energy policy--Austria--Periodicals.
Power resources--Austria--Periodicals.
Princeton subject headings:
Energy conservation--Austria--Periodicals.
Energy policy--Austria--Periodicals.
Periodicals.
Power resources--Austria--Periodicals.