Media type: E-Article Title: H? approximation with point constraints applied to impedance estimation Contributor: Schwartz, David F.; Allen, Jeffery C. imprint: Springer Science and Business Media LLC, 1997 Published in: Circuits Systems and Signal Processing Language: English DOI: 10.1007/bf01185001 ISSN: 0278-081X; 1531-5878 Keywords: Applied Mathematics ; Signal Processing Origination: Footnote: