Layer potential techniques in spectral analysis by Ammari, Habib, Kang, Hyeonbae, Lee, Hyundae fromMathematical surveys and monographs 0 Type: Book
Symmetry and perturbation theory in nonlinear dynamics by Cicogna, Giampaolo, Gaeta, Giuseppe fromLecture Notes in Physics 0 Type: Book
Perturbation methods in non-linear systems by Giacaglia, Giorgio E. O. fromApplied mathematical sciences 0 Type: Book