@article{ND_2007_3_2_a1,
     author = {A. V. Vershilov and A. V. Tsiganov},
     title = {On the {Darboux--Nijenhuis} variables on the {Poisson} manifold~$so^*(4)$},
     journal = {Russian journal of nonlinear dynamics},
     pages = {141--155},
     publisher = {mathdoc},
     volume = {3},
     number = {2},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ND_2007_3_2_a1/}
}