@inproceedings{r.1974stochastic, title={Stochastic integrals in the plane}, author={R. Cairoli, and John B. Walsh}, url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203235224162184}, booktitle={Acta Mathematica}, volume={134}, number={1}, pages={111-183}, year={1974}, }