@inproceedings{svante1981on,
title={On hypercontractivity for multipliers on orthogonal polynomials},
author={Svante Janson},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203514616781386},
booktitle={Arkiv for Matematik},
volume={21},
number={1},
pages={97-110},
year={1981},
}