1. Baldner, C.S., Schou, J.: 2012, Astrophys. J. Lett.
760, L1.
2. Beckers, J.M.: 2007, Solar Phys.
240, 3.
ADS
.
DOI
.
3. Duvall, T.L. Jr.: 2003, In: Sawaya-Lacoste, H. (ed.) Proc. SOHO12/GONG+ 2002 Local and Global Helioseismology: the Present and Future, SP-517. ESA, Noordwijk, 259.
4. Duvall, T.L. Jr., Hanasoge, S.M.: 2009, In: Dikpati, M., Arentoft, T., González Hernández, I., Lindsey, C., Hill, F. (eds.) Solar-Stellar Dynamos as Revealed by Helio- and Asteroseismology: GONG 2008/SOHO 21, CS-416. Astron. Soc. Pac, San Francisco, 103.
5. Duvall, T.L. Jr., Jefferies, S.M., Harvey, J.W., Pomeranta, M.A.: 1993, Nature
362, 430.