@article{IM2_1989_32_2_a0,
     author = {O. I. Bogoyavlenskii},
     title = {The {Lax} representation with a~spectral parameter for certain dynamical systems},
     journal = {Izvestiya. Mathematics},
     pages = {245--268},
     year = {1989},
     volume = {32},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1989_32_2_a0/}
}