Columbia subject headings:
Germany--Social conditions--1990-
Social change--Germany.
Social problems--Germany.
Harvard subject headings:
Germany--Social conditions--1990-
Social change--Germany
Social problems--Germany.
Princeton subject headings:
Germany--History--Unification, 1990--Psychological aspects.
Germany--History--Unification, 1990--Social aspects.
Social change--Germany--Psychological aspects.
Young adults--Germany--Longitudinal studies.
Youth--Germany--Longitudinal studies.