Strict Lyapunov functions for control of robot manipulators. (English)
Automatica 33, No.4, 675-682 (1997).
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Stability theorems for sequences $η\sb{n+1}=f(η\sb n,ξ\sb{n+1})$ in Banach and metric spaces. (English)
Theory Probab. Math. Stat. 33, 47-57 (1986); translation from Teor. Veroyatn. Mat. Stat. 33, 42-52 (1985).
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