L₂-gain and passivity techniques in nonlinear control / Arjan van der Schaft. Schaft, A. J. van der Automatic control. Nonlinear control theory. TJ213 .S1233 1996 629.836 SCL Includes bibliographical references [p. 155-165] and index. London ; Springer, c1996. c1996. 1996 Text 168 p. : eng Lecture notes in control and information sciences ; 218