@article{JCA_2011_18_1_JCA_2011_18_1_a3,
     author = {A. Verde},
     title = {Calder\'on-Zygmund {Estimates} for {Systems} of {\ensuremath{\varphi}-Growth}},
     journal = {Journal of convex analysis},
     pages = {67--84},
     publisher = {mathdoc},
     volume = {18},
     number = {1},
     year = {2011},
     url = {http://geodesic.mathdoc.fr/item/JCA_2011_18_1_JCA_2011_18_1_a3/}
}