E. Akhmedov. (2019)cite arxiv:1905.10207Comment: 24 pages, 1 figure. v2: title changed, section 4 modified, Appendix B added, references added. v3: section 4 slightly expanded; eq. (B.7) corrected. Final version to be published in JCAP.
S. Bilenky, C. Giunti, J. Grifols, and E. Masso. Phys. Rept., (2003)cite arxiv:hep-ph/0211462
Comment: 92 pages. Final version to be published in Phys. Rep., with note on
implications of recent WMAP results.
S. Collaboration. (2002)cite arxiv:nucl-ex/0204008
Comment: 6 pages, 3 figures, correction to author list and minor typographical
corrections to references.