1. Hilbert's thirteenth problem;Abhyankar,1997
2. On the representation of continuous functions of three variables by superposition of continuous functions of two variables;Arnold;Mat. Sb.,1959
3. Superposition of algebraic functions;Arnold,1976
4. Galois cohomology of the classical groups over fields of cohomological dimension ⩽2;Bayer-Fluckiger;Invent. Math.,1995
5. On the structure of Galois groups of the fields of rational functions;Bogomolov,1995