@article{10_4064_ba57_2_3,
     author = {M. Sabatini},
     title = {A {Note} on the {Divergence-Free} {Jacobian} {Conjecture} in $\mathbb{R}^2$},
     journal = {Bulletin of the Polish Academy of Sciences. Mathematics},
     pages = {109--115},
     publisher = {mathdoc},
     volume = {57},
     number = {2},
     year = {2009},
     doi = {10.4064/ba57-2-3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ba57-2-3/}
}