1. Auer, L.H. and Paletou, F.: 1994 Astron. Astrophys.
285, 675
2. Auer, L.H., Fabiani Bendicho, P., and Trujillo Bueno, J.: 1994 Astron. Astrophys.
292, 599
3. Bommier, V.: 1996, in J.O. Stenflo and K.N. Nagendra (eds), Solar Polarization, Proc. 1st SPW, Kluwer, Dordrecht, p. 29 (also Solar Phys.
164, 29)
4. Bommier, V.: 1997, Astron. Astrophys.
328, 726
5. Brink, D.M. and Satchler, G.R.: 1968, Angular Momentum, 2nd edition, Clarendon Press, Oxford