@article{BUMI_2002_8_5B_2_a11,
     author = {Auscher, P. and Qafsaoui, M.},
     title = {Observations on $W^{1,p}$ estimates for divergence elliptic equations with {VMO} coefficients},
     journal = {Bollettino della Unione matematica italiana},
     pages = {487--509},
     publisher = {mathdoc},
     volume = {Ser. 8, 5B},
     number = {2},
     year = {2002},
     zbl = {1173.35419},
     mrnumber = {1475008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/BUMI_2002_8_5B_2_a11/}
}