1. Allen, C.W. Astrophysical Quantities, Athlone Press, University of London, 1973
2. Large-scale transport of magnetic flux on the Sun;Ambrož;Solar Phys.,2001
3. Basu, S., Antia, H.M. The solar rotation rate from the solar minimum to maximum, in: Proc. SOHO 11th Symposium, ESA SP-508, pp. 59–62, 2002
4. Callebaut, D.K., Makarov, V.I., Tlatov, A.G. Gravitational energy, solar radius and the solar cycle, SOLSPA 2001, ESA SP-47, p. 209-21, 2002
5. Chandrasekhar, S. An Introduction to the Study of the Stellar Structure, Chicago, 1939