Media type: E-Article Title: Balanced Realizations for Linear Systems: A Variational Approach Contributor: Helmke, U. Published: Society for Industrial & Applied Mathematics (SIAM), 1993 Published in: SIAM Journal on Control and Optimization, 31 (1993) 1, Seite 1-15 Language: English DOI: 10.1137/0331001 ISSN: 0363-0129; 1095-7138 Keywords: Applied Mathematics ; Control and Optimization Origination: Footnote: