Fig. 3.1 Castellani V. 1985, “Astrofisica Stellare,Zanichelli
Fig. 3.2 Clayton D.D. 1983, “Principles of Stellar Evolution and Nucleosynthesis”, McGraw-Hill
Fig. 3.3 Clayton D.D. 1983, “Principles of Stellar Evolution and Nucleosynthesis”, McGraw-Hill
Fig. 3.4 Hayashi C., Hoshi R., Sugimoto D. 1962, Progr. Theor. Physics, Suppl 22.
Fig. 3.5 Ezer D., Cameron A.G.W. 1963, Icarus 1, 422.
Fig. 3.6 Castellani V. 1985, “Astrofisica Stellare, Zanichelli
Fig. 3.12 Clayton D.D. 1983, “Principles of Stellar Evolution and Nucleosynthesis”, McGraw-Hill
Fig. 3.14 Clayton D.D. 1983, “Principles of Stellar Evolution and Nucleosynthesis”, McGraw-Hill