1. G. Elencwajg—O. Forster: Vector bundles on manifolds without divisors and a theorem on deformations. To be published.
2. G. Elencwajg—M.S. Narasimhan: Projective bundles over a torus. To be published.
3. R. Hoobler: Brauer groups of abelian schemes. Ann. Sc. de l'E.N.S. 4e série, t. 5, 1972, pp. 45 à 70.
4. A. Grothendieck: Le groupe de Brauer I, II, III in Dix Exposés sur la cohomologie des schémas. Masson and North-Holland 1968.