暂无分享,去创建一个
M. Nees
[1] David A. Sprecher,et al. A survey of solved and unsolved problems on superpositions of functions , 1972 .
[2] D. Sprecher. On the structure of continuous functions of several variables , 1965 .
[3] G. Lorentz. METRIC ENTROPY, WIDTHS, AND SUPERPOSITIONS OF FUNCTIONS , 1962 .