Wong, J. H., Shanks, T., Metcalfe, N., & Whitbourn, J. (2022). The local hole: a galaxy underdensity covering 90 per cent of sky to ≈200 Mpc. Monthly Notices of the Royal Astronomical Society, 511(4), 5742-5755. https://doi.org/10.1093/mnras/stac396