https://dds.las.ac.cn/service/document?appId=a1vacbnPuv9qJRzJvdNXfsesj9JbIa6e&appKey=sPBA4vANLzjnW1k5eufEcc4k7dxfNraW&ts=1763018315043&signature=55554fab844685083035413900da0bf5&articleTitle=Cyclophanes+I&articleAuthor=F.+V%C3%B6gtle&publicationTitle=Cyclophanes+I&language=&publicationType=1&publishYear=1983&isn=9783540123972&publisher=Springer+Berlin+Heidelberg