Columbia subject headings:
Ledoux, Paul, 1914-
Pulsating stars--Congresses.
Smeyers, P. (Paul)
Stellar oscillations--Congresses.
Harvard subject headings:
Ledoux, Paul, 1914-
Pulsating stars--Congresses.
Smeyers, P. (Paul)
Stellar oscillations--Congresses.
Princeton subject headings:
Pulsating stars--Congresses.
Stellar oscillations--Congresses.