@article{SM_1998_189_11_a1,
     author = {A. R. Danilin},
     title = {Asymptotic behaviour of bounded controls for a~singular elliptic problem in a~domain with a~small cavity},
     journal = {Sbornik. Mathematics},
     pages = {1611--1642},
     publisher = {mathdoc},
     volume = {189},
     number = {11},
     year = {1998},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1998_189_11_a1/}
}