1. Kamiokande Collaboration, Y. Fukuda et al., Phys. Rev. Lett. 77 (1996) 1683.
2. Gallex Collaboration, P. Anselmann et al., Phys. Lett. B 342 (1995) 440.
3. GALLEX solar neutrino observations: Results for GALLEX III
4. Sage Collaboration, V. Gavrin et al., in: K. Huitu, K. Enqvist, J. Maalampi (Eds.), Neutrino ’96, Proceedings of the 17th International Conference on Neutrino Physics and Astrophysics, Helsinki, World Scientific, Singapore, 1997, p. 14.
5. T. Kirsten, Proceedings of the Sixth International Workshop on Topics in Astroparticle and Underground Physics, TAUP99, Paris, September 1999.