1
by Felʹdbaum, A. A.
Published 1965
Elsevier Science
Table of Contents: ... partial information about the controlled object -- Optimal systems with independent (passive) storage...

2
by Harris, C. J.
Published 1983
Academic Press
Table of Contents: ...Chapter 7. Stability of Nonlinear Multivariable Systems-Passivity Results7.1 Passivity stability...