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2. Asymptotische Methoden in der Theorie der nichtlinearen Schwingungen;Bogoljubov,1965
3. G. Gloth, M. Sinapius, Swept-sine excitation during modal identification of large aerospace structures, Forschungsbericht DLR-FB 2002-18, DLR-lnstitut für Aeroelastik, 2002.
4. Detection of non-linearities in swept-sine measurements;Gloth,2003
5. Validation testing for flutter certification of the new high-performance trainer aircraft pc-21;Vollan,2003