TY  - RPRT
TI  - On approximation of functions, topological mappings and nonlinear feedback control systems
AU  - Athans, M.
AU  - Debs, A. S.
AU  - Joseph, K. M.
PY  - 1969
UR  - https://ntrs.nasa.gov/citations/19690031859
ID  - 19690031859
ER  -