1. M. Artin and D. Mumford, Some elementary examples of unirational varieties which are not rational, Proceedings of the London Mathematical Society 25 (1972), 75–95.
2. A. Beauville and R. Donagi, La variété des droites d’une hypersurface cubique de dimension 4, Comptes Rendus des Séances de l’Académie des Sciences. Série I. Mathématique 301 (1985), 703–706.
3. J. Brillhart, D. H. Lehmer and J. L. Selfridge, New primality criteria and factorizations of 2m± 1, Mathematics of Computation 29 (1975), 620–647.
4. N. Bourbaki, Éléments de mathématique. Algèbre. Chapitres 4 á 7, Masson, Paris, 1981.
5. C. H. Clemens and P. A. Griffiths, The intermediate Jacobian of the cubic threefold, Annals of Mathematics 95 (1972), 281–356.