https://dds.las.ac.cn/service/document?appId=a1vacbnPuv9qJRzJvdNXfsesj9JbIa6e&appKey=sPBA4vANLzjnW1k5eufEcc4k7dxfNraW&ts=1763013193338&signature=e649b1bd89e505a908c56cf616094ee8&articleTitle=Narrow-Band+Phenomena%E2%80%94Influence+of+Electrons+with+Both+Band+and+Localized+Character&articleAuthor=J.+C.+Fuggle%2C+G.+A.+Sawatzky%2C+J.+W.+Allen&publicationTitle=Narrow-Band+Phenomena%E2%80%94Influence+of+Electrons+with+Both+Band+and+Localized+Character&language=&publicationType=1&publishYear=1988&isn=9781468455618&publisher=Springer+US