Canavezes, A, Springel, V, Oliver, SJ, Rowan-Robinson, M, Keeble, O, White, SDM, Saunders, W, Efstathiou, G, Frenk, CS, McMahon, RG, Maddox, S, Sutherland, W, Tadros, H, "The topology of the IRAS Point Source Catalogue Redshift Survey", Monthly Notices of the Royal Astronomical Society: Letters, 1998