参考文献是为说明著作的科学依据,反映该论文的起点和深度,表示尊重他人的科学成果和著作权,也便于读者进一步查阅有关资料,所以参考文献必须是作者亲自阅读过的并发表在正式出版物上的原始文献,所引文献必须注重权威性和时效性,只著录最必要的、最新的文献,以近5年的文献为宜。依据GB/ Reference is to illustrate the scientific basis of the book, reflecting the starting point and depth of the paper, said that respect for the scientific achievements and copyrights of others, but also facilitate readers to further access to relevant information, so the reference must be personally read by the author and published in the official publication The original documents, the cited documents must focus on the authority and timeliness, only the most necessary and most recent literature, with nearly 5 years of literature is appropriate. According to GB /