@article{ND_2007_3_1_a4,
     author = {D. B. Zotev},
     title = {A criterion for a {Poisson} matrix determinant to be a partial integral of the {Hamiltonian} system},
     journal = {Russian journal of nonlinear dynamics},
     pages = {75--80},
     publisher = {mathdoc},
     volume = {3},
     number = {1},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ND_2007_3_1_a4/}
}