De Lara, D. N. G. (2003). An alternative undamped, free vibration analysis of Duffing's equation.
Chicago Style (17th ed.) CitationDe Lara, Dennis Noel G. An Alternative Undamped, Free Vibration Analysis of Duffing's Equation. 2003.
MLA (9th ed.) CitationDe Lara, Dennis Noel G. An Alternative Undamped, Free Vibration Analysis of Duffing's Equation. 2003.
Warning: These citations may not always be 100% accurate.