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A. Proca, J. Phys. Radium 7
1936
Earlier work this paper cites.
E. C. G. Stückelberg, Helv. Phys. Acta 11
1938
Earlier work this paper cites.
J. B. Adams, M. A. Ruderman, and C. H. Woo, Phys. Rev. 129
1963
Earlier work this paper cites.
M. G. Hare, Lett. Nuovo Cim. 4
1972
Earlier work this paper cites.
J. C. Pati and A. Salam, Phys. Rev. D 10
1975
Earlier work this paper cites.
G. ’t Hooft, NATO Adv. Study Inst. Ser. B Phys. 59
1980
Earlier work this paper cites.
H. Georgi, P. H. Ginsparg, and S. L. Glashow, Nature 306
1983
Earlier work this paper cites.
S. T. Petcov and S. T. Toshev, Phys. Lett. B 143
1984
Earlier work this paper cites.
J. C. Mather et al
1996
Cited alongside, same era.
S. Davidson, S. Hannestad, and G. Raffelt, JHEP 0005
2000
Cited alongside, same era.
S. V. Kuzmin and D. G. C. McKeon, Mod. Phys. Lett. A 16
2001
Cited alongside, same era.
H. Ruegg and M. Ruiz-Altaba, Int. J. Mod. Phys. A 19
2004
Cited alongside, same era.
A. S. Goldhaber and M. M. Nieto, Rev. Mod. Phys. 43
2005
Cited alongside, same era.
S. Davidson, G. Isidori and A. Strumia, Phys. Lett. B 646
2007
Cited alongside, same era.
D. G. C. McKeon and T. J. Marshall, Int. J. Mod. Phys. A 23
A. Mirizzi, J. Redondo, and G. Sigl, JCAP 0903
2009
Later among the works it cites.
J. Jaeckel and A. Ringwald, Ann. Rev. Nucl. Part. Sci. 60
2010
Later among the works it cites.
For a review, see J. E. Kim and G. Carosi, Rev. Mod. Phys. 82
2010
Later among the works it cites.
2011
Later among the works it cites.
For a recent review, see S. Luo and Z. Z. Xing, Int. J. Mod. Phys. A 27
2012
Later among the works it cites.
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2008
Cited alongside, same era.
H. Zhang, Class. Quant. Grav. 25
2008
Cited alongside, same era.
Cited in the paper.
For recent analyses, see A. Mirizzi, D. Montanino, and P. D. Serpico, Phys. Rev. D 76
2012
Later among the works it cites.
C. Broggini, C. Giunti, and A. Studenikin, Adv. High Energy Phys. 2012
2012
Later among the works it cites.