Kesavamurthy, N.; Rao, Ganti Prasada Stability of feedback systems with periodic parameters. (English) Zbl 0236.93035 Int. J. Control, I. Ser. 15, 1179-1192 (1972). MSC: 93D15 PDFBibTeX XMLCite \textit{N. Kesavamurthy} and \textit{G. P. Rao}, Int. J. Control, I. Ser. 15, 1179--1192 (1972; Zbl 0236.93035) Full Text: DOI
Kesavamurthy, N.; Prasada Rao, G. Stability of feedback systems with rapidly varying periodic parameters. (English) Zbl 0221.93006 Int. J. Control, I. Ser. 14, 487-496 (1971). MSC: 93D15 PDFBibTeX XMLCite \textit{N. Kesavamurthy} and \textit{G. Prasada Rao}, Int. J. Control, I. Ser. 14, 487--496 (1971; Zbl 0221.93006) Full Text: DOI