Continuation: General Theory for Inhomogeneous ODEs. Stability Criteria for the Constant-coefficient ODEs -- Lecture 12. More examples of second-order ODEs.
Arthur Mattuck, 18.03 Differential Equations, Spring 2006. (Massachusetts Institute of Technology: MIT OpenCourseWare), http://ocw.mit.edu (Accessed November 26, 2008). License: Creative Commons BY-NC-SA.
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