@article{IM2_2000_64_3_a1,
     author = {R. R. Gadyl'shin},
     title = {Resonator systems},
     journal = {Izvestiya. Mathematics },
     pages = {487--529},
     publisher = {mathdoc},
     volume = {64},
     number = {3},
     year = {2000},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2000_64_3_a1/}
}