Columbia subject headings:
Harvard subject headings:
Biedermeier.
First loves--Germany--History--19th century.
Students--Germany--Sexual behavior--History--19th century.
Students--Germany--Social conditions--19th century.
Princeton subject headings:
Sex role--Germany--History--19th century.
Sexual ethics--Germany--History--19th century.
Socialization--Germany.
Young adults--Sexual behavior--Germany.