Publisher
Springer Nature Switzerland
Reference55 articles.
1. K. Land, J. Magueijo, Phys. Rev. Lett. 95, 071301 (2005). (astro-ph/0502237)
2. K. Land, J. Magueijo, Mon. Not. Roy. Astron. Soc. 378, 153 (2007). (astro-ph/0611518)
3. K. Greisen, Phys. Rev. Lett. 16, 748 (1966)
4. G.T. Zatsepin, V.A. Kuzmin, JETP Lett. 4, 78 (1966)
5. J. Magueijo, L. Smolin, Class. Quant. Grav. 21, 1725 (2004). (gr-qc/0305055)