@article{SIGMA_2006_2_a11,
     author = {Igor V. Komarov and Andrey V. Tsiganov},
     title = {On {Classical} $r${-Matrix} for the {Kowalevski} {Gyrostat} on $\mathrm{so}(4)$},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2006},
     volume = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2006_2_a11/}
}