Columbia subject headings:
Harvard subject headings:
Book industries and trade--History--Congresses.
Children's literature, German--History and criticism--Congresses.
Children's literature--History and criticism--Congresses
Children's literature--Publishing--Congresses.
Graphic novels--History and criticism--Congresses.
Mass media and literature--Congresses.
Princeton subject headings:
Children's literature--History and criticism--Congresses.
Graphic novels--History and criticism--Congresses.