Media type: E-Article Title: Application of perturbation theory to the eikonal equation in the case of inhomogeneous anisotropic media Contributor: Kravtsov, Yu. A.; Yashin, Yu. Ya. Published: Springer Science and Business Media LLC, 1969 Published in: Radiophysics and Quantum Electronics, 12 (1969) 8, Seite 926-930 Language: English DOI: 10.1007/bf01031194 ISSN: 0033-8443; 1573-9120 Keywords: Electrical and Electronic Engineering ; Astronomy and Astrophysics ; Nuclear and High Energy Physics ; Statistical and Nonlinear Physics ; Electronic, Optical and Magnetic Materials Origination: Footnote: