@article{10_1090_S0894_0347_2012_00755_3,
     author = {Dolgopyat, Dmitry and Koralov, Leonid},
     title = {Averaging of incompressible flows on two-dimensional surfaces},
     journal = {Journal of the American Mathematical Society},
     pages = {427--449},
     publisher = {mathdoc},
     volume = {26},
     number = {2},
     year = {2013},
     doi = {10.1090/S0894-0347-2012-00755-3},
     url = {http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-2012-00755-3/}
}