Geodesic
The inverse Galois problem for extensions of difference fields
Trudy Matematicheskogo Instituta imeni V.A. Steklova, Tome 27 (1972) no. 1 
E. V. Pankratiev. The inverse Galois problem for extensions of difference fields. Trudy Matematicheskogo Instituta imeni V.A. Steklova, Tome 27 (1972) no. 1. http://geodesic.mathdoc.fr/item/RM_1972_27_1_a18/
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     author = {E. V. Pankratiev},
     title = {The inverse {Galois} problem for extensions of difference fields},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     year = {1972},
     volume = {27},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/RM_1972_27_1_a18/}
}
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Voir la notice de l'article provenant de la source Math-Net.Ru

[1] J. Kovacic, “The inverse problem in the Galois theory of differential fields”, Ann. of Math. (2), 89 (1969), 589–608 | DOI | MR

[2] C. H. Franke, “Picard-Vessiot theory of linear homogeneous difference equations”, Trans. Amer. Math. Soc., 108:3 (1963) | DOI | MR | Zbl