@inproceedings{mogens1971paley-wiener,
title={Paley-Wiener type theorems for a differential operator connected with symmetric spaces},
author={Mogens Flensted-Jensen},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203449212062169},
booktitle={Arkiv for Matematik},
volume={10},
number={1},
pages={143-162},
year={1971},
}
Mogens Flensted-Jensen. Paley-Wiener type theorems for a differential operator connected with symmetric spaces. 1971. Vol. 10. In Arkiv for Matematik. pp.143-162. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203449212062169.