Schmoldt, I, Branchini, E, Teodoro, L, Efstathiou, G, Frenk, CS, Keeble, O, McMahon, R, Maddox, S, Oliver, S, Rowan-Robinson, M, Saunders, W, Sutherland, W, Tadros, H, White, SDM, "Likelihood analysis of the Local Group acceleration", Monthly Notices of the Royal Astronomical Society: Letters, 1999