PACS numbers

04.30.Nk Wave propagation and interactions

E.M. Lifshitz, I.M. Khalatnikov “Problems of relativistic cosmology” Sov. Phys. Usp. 6 495–522 (1964)
98.80.Jk, 04.20.Dw, 04.20.Jb, 04.25.Nx, 04.30.Nk (all)