1. Bass, H., Connell, E.H., and Wright, D.: ‘The Jacobian conjecture: reduction of degree and formal expansion of the inverse’, Bull. Amer. Math. Soc.
7 (1982), 287–330.
2. Essen, A. van den: ‘Polynomial automorphisms and the Jacobian conjecture’, in J. Alev et al. (eds.): Algèbre Non-commutative, Groupes Quantiques et Invariants, SMF, 1985, pp. 55–81.
3. Essen, A. van den: ‘Seven lectures on polynomial automorphisms’, in A. van den Essen (ed.): Automorphisms of Affine Spaces, Kluwer Acad. Publ., 1995, pp. 3–39.
4. Essen, A. van den: Polynomial automorphisms and the Jacobian conjecture, Birkhäuser, to appear in 2000.
5. Keller, O.H.: ‘Ganze Cremonatransformationen’, Monatschr. Math. Phys.
47 (1939), 229–306.