@article{10_4007_annals_2016_184_3_7,
     author = {Alexander Kiselev and Lenya Ryzhik and Yao Yao and Andrej Zlato{\v{s}}},
     title = {Finite time singularity  for the modified {SQG} patch equation},
     journal = {Annals of mathematics},
     pages = {909--948},
     publisher = {mathdoc},
     volume = {184},
     number = {3},
     year = {2016},
     doi = {10.4007/annals.2016.184.3.7},
     mrnumber = {3549626},
     zbl = {06647935},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4007/annals.2016.184.3.7/}
}