然后,在我的文章中,我必须给出我的观点,并且需要通过参考其他作者来解释为什么我相信自己所做的（事情）
整个句子是个并列句I had to give my own opinions and explain why I believed what I did by referring to other author.
宾语从句：explain why I believed what I did by referring to other author.和what I did
状语从句 by referring to other author.