@inbook{inbook, title  = {{Appendix: Translation of Sections from Duffing's Original Book}},

 publisher = {{Wiley}},

 url = {{https://doi.org/10.1002/9780470977859.app1 }},

 year = {{2011}},

 month = {{3}},

 author = {{Worden K and Worden H}},

 doi = {{10.1002/9780470977859.app1}},

 isbn = {{9780470715499}},

 pages = {{323-354}},

 note = {{Accessed on 2025/11/23}}}