1. [1] S. S. Abhyankar, Lectures on expansion techniques in algebraic geometry, Tata Institute of Fundamental Research Lectures on Mathematics and Physics 57, Tata Institute of Fundamental Research, Bombay, 1977.
2. [2] H. Appelgate and H. Onishi, “The Jacobian conjecture in two variables”, J. Pure Appl. Algebra 37:3 (1985), 215–227.
3. [3] C. Cheng and S. Wang, “Radial similarity of Newton polygons”, pp. 157–167 in Automorphisms of affine spaces (Curaçao, 1994), edited by A. van den Essen, Kluwer, Dordrecht, 1995.
4. [4] A. van den Essen, “Polynomial automorphisms and the Jacobian conjecture”, pp. 55–81 in Algèbre non commutative, groupes quantiques et invariants (Reims, 1995), Sémin. Congr. 2, Soc. Math. France, Paris, 1997.
5. [5] A. van den Essen, Polynomial automorphisms and the Jacobian conjecture, Progress in Mathematics 190, Birkhäuser, Basel, 2000.