1. The generalized Weierstrass approximation theorem;Stone;Math. Mag.,1948
2. The generalized Weierstrass approximation theorem;Stone;Math. Mag.,1948
3. On representation of continous functions of several variables by superpositions of continuous functions of smaller number of variables;Kolmogorov;Dokl. AN SSSR,1956
4. On the functions of three variables;Arnold;Dokl. AN SSSR,1957
5. On representation of continuous functions of several variables as superpositions of continuous functions of one variable;Kolmogorov;Dokl. AN SSSR,1957