Garratt, T. K., Coppin, K. E.K., Geach, J. E., Almaini, O., Hartley, W. G., Maltby, D. T., Simpson, C. J., Wilkinson, A., Conselice, C. J., Franco, M., Ivison, R. J., Koprowski, M. P., Lovell, C. C., Pope, A., Scott, D., Van Der Werf, P., "Cosmic Evolution of the H2 Mass Density and the Epoch of Molecular Gas", Astrophysical Journal, 2021