@inproceedings{f.1972the$l$^{$p$}-integrability,
title={The$L$^{$p$}-integrability of the partial derivatives of A quasiconformal mapping},
author={F. W. Gehring},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203228456177148},
booktitle={Acta Mathematica},
volume={130},
number={1},
pages={265-277},
year={1972},
}
F. W. Gehring. The$L$^{$p$}-integrability of the partial derivatives of A quasiconformal mapping. 1972. Vol. 130. In Acta Mathematica. pp.265-277. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203228456177148.