Columbia subject headings:
Ability--Austria--Statistics.
Education--Austria--Statistics.
Educational attainment--Austria--Statistics.
Harvard subject headings:
Ability--Austria--Statistics.
Austria--Population--Statistics.
Education--Austria--Statistics.
Education--Demographic aspects--Austria--Statistics.
Educational attainment--Austria--Statistics.
Princeton subject headings:
Ability--Austria--Statistics.
Education--Austria--Statistics.
Educational attainment--Austria--Statistics.
Statistics.