@inproceedings{michel2001$h$^{1}-boundedness,
title={$H$^{1}-boundedness of Riesz transforms and imaginary powers of the Laplacian on Riemannian manifolds},
author={Michel Marias, and Emmanuel Russ},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203606430272806},
booktitle={Arkiv for Matematik},
volume={41},
number={1},
pages={115-132},
year={2001},
}
Michel Marias, and Emmanuel Russ. $H$^{1}-boundedness of Riesz transforms and imaginary powers of the Laplacian on Riemannian manifolds. 2001. Vol. 41. In Arkiv for Matematik. pp.115-132. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203606430272806.