@inproceedings{maría2019improved,
title={Improved fractional Poincaré type inequalities on John domains},
author={María Eugenia Cejas, Irene Drelichman, and Javier C. Martínez-Perales},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191204135345571450595},
booktitle={Arkiv for Matematik},
volume={57},
number={2},
pages={285-315},
year={2019},
}
María Eugenia Cejas, Irene Drelichman, and Javier C. Martínez-Perales. Improved fractional Poincaré type inequalities on John domains. 2019. Vol. 57. In Arkiv for Matematik. pp.285-315. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191204135345571450595.