@article{AIHPC_2018__35_4_921_0,
     author = {Had\v{z}i\'c, Mahir and Seeger, Andreas and Smart, Charles K. and Street, Brian},
     title = {Singular integrals and a problem on mixing flows},
     journal = {Annales de l'I.H.P. Analyse non lin\'eaire},
     pages = {921--943},
     publisher = {Elsevier},
     volume = {35},
     number = {4},
     year = {2018},
     doi = {10.1016/j.anihpc.2017.09.001},
     mrnumber = {3795021},
     zbl = {1387.37010},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.anihpc.2017.09.001/}
}