Schwarzschild, Martin (1975). „On the scale of photospheric convection in red giants and supergiants“. Astrophysical Journal. 195: 137–144. Bibcode:1975ApJ...195..137S. doi:10.1086/153313.
Schwarzschild, Martin (1975). „On the scale of photospheric convection in red giants and supergiants“. Astrophysical Journal. 195: 137–144. Bibcode:1975ApJ...195..137S. doi:10.1086/153313.