1 H.. Nieuwenhuijzen, C.. de Jager, M.. Cuntz, A.. Lobel, and L.. Achmad, Astronomy and Astrophysics 280, (1993).
1 A.K. Dupree, A.. Lobel, P.R. Young, T.B. Ake, J.L. Linsky, and S.. Redfield, The Astrophysical Journal 622, (2005).