https://dds.las.ac.cn/service/document?appId=a1vacbnPuv9qJRzJvdNXfsesj9JbIa6e&appKey=sPBA4vANLzjnW1k5eufEcc4k7dxfNraW&ts=1763018315266&signature=a87a94a08673ab3329db9f0d2b223889&articleTitle=Probability+Measures+on+Groups+IX&articleAuthor=Herbert+Heyer&publicationTitle=Probability+Measures+on+Groups+IX&language=&publicationType=1&publishYear=1989&isn=9783540514015&publisher=Springer+Berlin+Heidelberg