References
- Richard Jozsa, 1B METHODS LECTURE NOTES, PART II: PDEs on bounded domains: Separation of variables, Department of Applied Mathematics and Theoretical Physics, Cambridge Univ., 52–55 (October 2011).
- K. Likharev, Section 2.4 Chapter 2, Stony Brook, State University of New York, 14–15 (2013).
- Laplacian Operator, http://en.wikipedia.org/wiki/Laplacian (2012).
- Cylindrical Coordinates, http://en.wikipedia.org/wiki/Cylindrical_coordinates (2012).