Columbia subject headings:
Harvard subject headings:
Majorana, Ettore--Congresses.
Sciascia, Leonardo. Scomparsa di Majorana--Congresses.
Princeton subject headings:
Authors, Italian--20th century--Biography--Congresses.
Majorana, Ettore--Congresses.
Nuclear physicists--Italy--Biography--Congresses.
Sciascia, Leonardo--Congresses.