@article{10_1007_s10587_013_0041_1,
     author = {Li, Jiantao and Du, Xiankun},
     title = {A note on the kernels of higher derivations},
     journal = {Czechoslovak Mathematical Journal},
     pages = {583--588},
     publisher = {mathdoc},
     volume = {63},
     number = {3},
     year = {2013},
     doi = {10.1007/s10587-013-0041-1},
     mrnumber = {3125643},
     zbl = {06282099},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1007/s10587-013-0041-1/}
}