%S Lecture Notes in Control and Information Sciences %A A. Yu. Khapalov %T Observability of hyperbolic systems with interior moving sensors %P 489-499 %B Analysis and Optimization of Systems: State and Frequency Domain Approaches for Infinite-Dimensional Systems %V 185 %C Germany %D 1993 %I Springer Berlin Heidelberg %R 10.1007/BFb0115047 %L iiasa14163