Media type: E-Article Title: Thermoacoustic tomography with an arbitrary elliptic operator Contributor: Klibanov, Michael V Published: IOP Publishing, 2013 Published in: Inverse Problems, 29 (2013) 2, Seite 025014 Language: Not determined DOI: 10.1088/0266-5611/29/2/025014 ISSN: 0266-5611; 1361-6420 Origination: Footnote: