No, the sci page fee is a little different from that of domestic periodicals, because there is no invoice for the Sci paper page fee. Therefore, if you need to reimburse the page fee of sci papers, you generally need to provide the following materials: invoices, bank remittance vouchers and published sci papers, mainly these three things should be submitted to the financial department of the unit. Some units may also need to provide the employment notice of sci articles, and it is enough to provide them together. This way, you don't have to hang up the project reimbursement. SCI is a citation database established on 1957 by EugeneGarfield of institute for scientific information, Philadelphia, USA. SCI (Science Citation Index), EI (Engineering Index) and ISTP (Science and Technology Conference Index) are three world-famous retrieval systems for scientific documents, which are internationally recognized as the main retrieval tools for scientific statistics and scientific evaluation.