@article{https://resolver.caltech.edu/CaltechAUTHORS:20170822-173737976, title = "Optimization of nonlinear control systems by means of nonlinear feedbacks", journal = "Transactions of the American Institute of Electrical Engineers, Part II: Applications and Industry", year = "1953", url = "https://resolver.caltech.edu/CaltechAUTHORS:20170822-173737976", id = "record", issn = "0097-2185", doi = "10.1109/TAI.1953.6371344", volume = "72" }