@book{UBHD-1060430, author={Romanov, Vladimir G.}, title={Integral geometry and inverse problems for hyperbolic equations}, publisher={Springer}, address={Berlin ; Heidelberg [u.a.]}, year={1974}, pages={VI, 151 S.}, language={eng}, isbn={3-540-06429-X and 0-387-06429-X and 978-0-387-06429-1 and 978-3-540-06429-9}, number={ARRAY(0x55c7c9418288)}, series={Springer tracts in natural philosophy}, note={Aus d. Russ. {\"u}bers}, library={MA [Signatur: Roman]}, }