@inproceedings{f.1980boundedness,
title={Boundedness of the shift operator related to positive definite forms: An application to moment problems},
author={F. H. Szafraniec},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203511012082356},
booktitle={Arkiv for Matematik},
volume={19},
number={1},
pages={251-259},
year={1980},
}
F. H. Szafraniec. Boundedness of the shift operator related to positive definite forms: An application to moment problems. 1980. Vol. 19. In Arkiv for Matematik. pp.251-259. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203511012082356.