1. On some differential equations of mathematical physics, having applications in technical questions;Krylov;T. Nikolay Maritime Academy,1913
2. Perturbation of eigenvalues in thermoelasticity and vibration of system with concentrated masses;Sanchez-Palencia,1984
3. Homogenization problems in elasticity. Spectrum of singularly perturbed operators;Oleinik,1987
4. Natural frequencies of a fastened plate with additional mass;Golovatyı̆;Uspekhi Mat. Nauk,1988
5. Concentrated masses problems for a spatial elastic body;Nazarov;C. R. Acad. Sci. Paris, Ser. I,1993