(en) Boudewijn Roukema et Zbigniew Buliński, Agnieszka Szaniewska et Nicolas E. Gaudin, « A test of the Poincare dodecahedral space topology hypothesis with the WMAP CMB data », Astronomy and Astrophysics, vol. 482, no 3, , p. 747–753 (DOI10.1051/0004-6361:20078777, arXiv0801.0006)
(en) Boudewijn Roukema et Zbigniew Buliński, Agnieszka Szaniewska et Nicolas E. Gaudin, « A test of the Poincare dodecahedral space topology hypothesis with the WMAP CMB data », Astronomy and Astrophysics, vol. 482, no 3, , p. 747–753 (DOI10.1051/0004-6361:20078777, arXiv0801.0006)