TY - RPRT TI - Approximation methods for control of acoustic/structure models with piezoceramic actuators AU - Banks, H. T. AU - Fang, W. AU - Silcox, R. J. AU - Smith, R. C. PY - 1991 UR - https://ntrs.nasa.gov/citations/19920006440 ID - 19920006440 ER -