@article{MZ_1991__207_2_174283,
     author = {Plamen D. Stefanov},
     title = {Inverse scattering problem for moving obstacles.},
     journal = {Mathematische Zeitschrift},
     pages = {461--480},
     publisher = {mathdoc},
     volume = {207},
     number = {2},
     year = {1991},
     zbl = {0795.35141},
     url = {http://geodesic.mathdoc.fr/item/MZ_1991__207_2_174283/}
}