@article{AA_1996_8_2_a8,
     author = {Rakesh},
     title = {Some results on inverse obstacle problems
},
     journal = {Algebra i analiz},
     pages = {157--161},
     publisher = {mathdoc},
     volume = {8},
     number = {2},
     year = {1996},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AA_1996_8_2_a8/}
}