@article{SM_1997_188_3_a2,
     author = {I. A. Vasin and V. L. Kamynin},
     title = {Asymptotic behaviour of the~solutions of inverse problems for parabolic equations with irregular coefficients},
     journal = {Sbornik. Mathematics},
     pages = {371--387},
     publisher = {mathdoc},
     volume = {188},
     number = {3},
     year = {1997},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1997_188_3_a2/}
}