@article{COMIM_2010__18_1_a2,
     author = {Guo, Yong-Xin and Liu, Chang and Liu, Shi-Xing},
     title = {Generalized {Birkhoffian} realization of nonholonomic systems},
     journal = {Communications in Mathematics},
     pages = {21--35},
     publisher = {mathdoc},
     volume = {18},
     number = {1},
     year = {2010},
     mrnumber = {2848504},
     zbl = {1253.70016},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/COMIM_2010__18_1_a2/}
}