@misc{indiciae1024d3197564, title = {Improved Notch Filter For Synchronous-Response Control}, author = {Johnson, Bruce G. and Downer, James R. and Eisenhaure, David B. and Hockney, Richard and Misovec, Kathleen}, year = {1991}, url = {https://ntrs.nasa.gov/citations/19910000141}, note = {Source identifier: 19910000141} }