@article{SM_1998_189_9_a5,
     author = {A. B. Shishkin},
     title = {Spectral synthesis for systems of differential  operators with constant coefficients. {Duality} theorem},
     journal = {Sbornik. Mathematics},
     pages = {1423--1440},
     publisher = {mathdoc},
     volume = {189},
     number = {9},
     year = {1998},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1998_189_9_a5/}
}