• [1]

    I. M. H. Etherington, Philosophical Magazine, 15: 761 (1933)

  • [2]

    I. M. H. Etherington, General Relativity and Gravitation, 39: 1055 (2007)

  • [3]

    G. F. R. Ellis, General Relativity, and Cosmology, Enrico Fermi Summer School Course XLVII, ed R. K. Sachs, 1971 (New York: Academic)

  • [4]

    G. F. R. Ellis, Gen. Rel. Grav., 39: 1047 (2007)

  • [5]

    P. S. Corasaniti, Mon. Not. Roy. Astron. Soc., 372: 191 (2006)

  • [6]

    B. A. Bassett and M. Kunz, Phys. Rev. D, 69: 101305 (2004)

  • [7]

    G. F. R. Ellis, R. Poltis et al., Phys. Rev. D, 87: 103530 (2013)

  • [8]

    R. F. L. Holanda et al., Astrophys. J., 722: L233 (2010)

  • [9]

    R. F. L. Holanda, V. C. Busti et al., JCAP, 1602: 054 (2016)

  • [10]

    R. F. L. Holanda, V. C. Busti et al., JCAP, 1709: 039 (2017)

  • [11]

    J. Hu et al., Mon. Not. Roy. Astron. Soc., 477: 5064 (2018)

  • [12]

    X. Li et al., Mon. Not. Roy. Astron. Soc., 474: 313 (2018)

  • [13]

    H.-N. Lin et al., Mon. Not. Roy. Astron. Soc., 480: 3117 (2018)

  • [14]

    K. Liao, Astrophys. J., 885: 70 (2019)

  • [15]

    C. Ma and P. S. Corasaniti, Astrophys. J., 861: 124 (2018)

  • [16]

    A. Piorkowska et al., Acta Physica Polonica B, 42: 2297 (2011)

  • [17]

    S. Santos-da-Costa, V. C. Busti et al., JCAP, 1510: 061 (2015)

  • [18]

    X. Yang, H. R. Yu et al., Astrophys. J. Lett., 777: L24 (2013)

  • [19]

    S. Perlmutter et al., Astrophys. J., 517: 565 (1999)

  • [20]

    A. G. Riess et al., Astron. J., 116: 1009 (1998)

  • [21]

    B. P. Abbott et al., Phys. Rev. Lett., 116: 061102 (2016)

  • [22]

    B. P. Abbott et al., Astrophys. J. Lett., 848: L13 (2017)

  • [23]

    L. Anderson et al., Mon. Not. Roy. Astron. Soc., 441: 24 (2014)

  • [24]

    F. Beutler et al., Mon. Not. Roy. Astron. Soc., 416: 3017 (2011)

  • [25]

    M. Bonamente, M. K. Joy et al., Astrophys. J., 647: 25 (2006)

  • [26]

    E. De Filippis, M. Sereno et al., Astrophys. J., 625: 108 (2005)

  • [27]

    J. C. Jackson, and A. L. Jannetta, JCAP, 0611: 002 (2006)

  • [28]

    K. Liao, Z. Li, S. Cao et al., Astrophys. J., 822: 74 (2016)

  • [29]

    X. Li et al., Mon. Not. Roy. Astron. Soc., 482: 5678 (2019)

  • [30]

    S. Mollerach and E. Roulet, Gravitational lensing and microlensing, World Scientific, Singapore, (2002)

  • [31]

    H. Y. Chen, M. Fishbach et al., Nature, 562: 545 (2018)

  • [32]

    R. G. Cai, T. B. Liu et al., Phys. Rev. D, 97: 103005 (2018)

  • [33]

    H.-N. Lin, J. Li et al., Eur. Phys. J. C, 78: 356 (2018)

  • [34]

    Z. Chang, Q.-G. Huang, S. Wang et al., EPJC, 79: 177 (2019)

  • [35]

    B. S. Sathyaprakash, B. F. Schutz, and C. Van Den Broeck, Class. Quant. Grav., 27: 215006 (2010)

  • [36]

    R. G. Cai and T. Yang, Phys. Rev. D, 95: 044024 (2017)

  • [37]

    W. Zhao and L. Wen, Phys. Rev. D, 97: 064031 (2018)

  • [38]

    S. Cao, M. Biesiada et al., Astrophys. J., 806: 185 (2015)

  • [39]

    Einstein gravitational wave Telescope conceptual design study, http://www.et-gw.eu/et/

  • [40]

    M. Biesiada, X. Ding et al., JCAP, 1410: 080 (2014)

  • [41]

    C. Cutler and J. Harms, Phys. Rev. D, 73: 042001 (2006)

  • [42]

    K. Liao, X. L. Fan, X. H. Ding et al., Nature Commun. 8 (2017) 1148; [Erratum: Nature Commun. 8 (2017) 2136]

  • [43]

    S. Cao, J. Qi, Z. Cao et al., Sci. Rep., 9: 11608 (2019)

  • [44]

    X. Ding, M. Biesiada, and Z. H. Zhu, JCAP, 1512: 006 (2015)

  • [45]

    P. A. R. Ade et al., Astron. Astrophys., 594: A13 (2016)

  • [46]

    N. Aghanim et al., (Planck Collaboration) , arXiv:1807.06209 [astro-ph.CO]

  • [47]

    E. Di Valentino, A. Melchiorri, and J. Silk, Nat. Astron., 4: 196 (2019), arXiv:1911.02087 [astro-ph.CO

  • [48]

    W. Handley, arXiv:1908.09139 [astro-ph.CO]