Media type: E-Article Title: Perturbation theory and the Rayleigh quotient Contributor: Chan, K.T.; Stephen, N.G.; Young, K. Published: Elsevier BV, 2011 Published in: Journal of Sound and Vibration, 330 (2011) 9, Seite 2073-2078 Language: English DOI: 10.1016/j.jsv.2010.11.001 ISSN: 0022-460X Keywords: Mechanical Engineering ; Mechanics of Materials ; Acoustics and Ultrasonics ; Condensed Matter Physics Origination: Footnote: