@article{IM2_1970_4_3_a10,
     author = {A. S. Markus},
     title = {The problem of spectral synthesis for operators with point spectrum},
     journal = {Izvestiya. Mathematics },
     pages = {670--696},
     publisher = {mathdoc},
     volume = {4},
     number = {3},
     year = {1970},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1970_4_3_a10/}
}