1. Partial Differential Equations VII: Spectral Theory of Differential Operators;Rozenblum,1994
2. Distribution of modes in fractal resonators;Berry,1979
3. The Asymptotic Distribution of Eigenvalues of Partial Differential Operators;Safarov,1997
4. Heat Equation on the Triadic Von Koch Snowflake: Asymptotic and Numerical Analysis