Geodesic
Deformations of principal $G$-bundles on compact analytic spaces
Trudy Matematicheskogo Instituta imeni V.A. Steklova, Tome 28 (1973) no. 1 
D. A. Ponomarev. Deformations of principal $G$-bundles on compact analytic spaces. Trudy Matematicheskogo Instituta imeni V.A. Steklova, Tome 28 (1973) no. 1. http://geodesic.mathdoc.fr/item/RM_1973_28_1_a14/
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     title = {Deformations of principal $G$-bundles on compact analytic spaces},
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Voir la notice de l'article provenant de la source Math-Net.Ru

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[4] A. L. Onischik, “O deformatsiyakh rassloennykh prostranstv”, DAN, 161:1 (1965), 45–47 | Zbl