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Journal Article A. M. Lyapunov's stability theory—100 years on Get access P. C. PARKS P. C. PARKS Royal Military College of Science (Cranfield)Shrivenham, Swindon, Wilts SN6 8LA, UK Search for other works by this author on: Oxford Academic Google Scholar IMA Journal of Mathematical Control and Information, Volume 9, Issue 4, 1992, Pages 275–303, https://doi.org/10.1093/imamci/9.4.275 Published: 01 December 1992
P.C. Parks (Wed,) studied this question.