Geodesic
Novikov–Betti numbers and the fundamental group
Trudy Matematicheskogo Instituta imeni V.A. Steklova, Tome 61 (2006) no. 6, pp. 1173-1175 
M. Farber; D. Schütz. Novikov–Betti numbers and the fundamental group. Trudy Matematicheskogo Instituta imeni V.A. Steklova, Tome 61 (2006) no. 6, pp. 1173-1175. http://geodesic.mathdoc.fr/item/RM_2006_61_6_a5/
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Voir la notice de l'article provenant de la source Math-Net.Ru

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