Columbia subject headings:
Harvard subject headings:
Inventors--Germany--Biography.
Mechanical engineers--Germany--Biography.
Wankel engine--History.
Wankel, Felix, 1902-1988.
Princeton subject headings:
Animal rights activists--Biography.
Internal combustion engines--History.
Inventors--Germany--Biography.
National socialism and technology.
Rotary combustion engines--History.
Wankel, Felix, 1902-1988.