1. [1] AA. VV., Stacks Project, version 94a58fd
2. [2] S. Beckmann, On extensions of number fields obtained by specializing branched coverings, Journal fr die reine und angewandte Mathematik, 419 (1991) p. 27–54.
3. [3] L. Breen, Notes on 1- and 2-gerbes, dans “Towards Higher Categories”, J.C. Baez and J.P. May (édit.), The IMA Volumes in Mathematics and its Applications, Tome 152, 193–235, Springer (2009), arXiv:math/0611317 .
4. [4] P. Dèbes, Galois covers with prescribed fibers: the Beckmann-Black problem, Ann. Scuola Norm. Sup. Pisa, Cl. Sci. 4, vol. 28, 1999, 273–286.
5. [5] P. Dèbes, On the Malle conjecture and the self-twisted cover, arXiv:1404.4074 .