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Further reading
- Pokorny, Pavel (2008). "Stability Condition for Vertical Oscillation of 3-dim Heavy Spring Elastic Pendulum". Regular and Chaotic Dynamics. 13 (3). Springer: 155–165. Retrieved 2015-01-12. [1] or [2]
- Pokorny, Pavel (2009). "Continuation of Periodic Solutions of Dissipative and Conservative Systems: Application to Elastic Pendulum". Mathematical Problems in Engineering. 2009. Hindawi Publishing: 1–15. doi:10.1155/2009/104547. Retrieved 2015-01-12.
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: CS1 maint: unflagged free DOI (link)
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