The optimal phase of the generalised Poincaré dodecahedral space hypothesis implied by the spatial cross-correlation function of the WMAP sky mapsB. F. Roukema, Z. Buliński, A. Szaniewska and N. E. GaudinA&A, 486 1 (2008) 55-72DOI: https://doi.org/10.1051/0004-6361:20079339