@article{10_4153_CJM_2000_018_2,
     author = {Miyachi, Akihiko},
     title = {Hardy {Space} {Estimate} for the {Product} of {Singular} {Integrals}},
     journal = {Canadian journal of mathematics},
     pages = {381--411},
     year = {2000},
     volume = {52},
     number = {2},
     doi = {10.4153/CJM-2000-018-2},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-2000-018-2/}
}