this article; this paper; this manuscript
Used in formal or academic writing to refer to the current document. Often appears in prefaces, abstracts, or introductions.
In this paper, I will discuss this issue in detail.
The purpose of this article is to propose a new method.
Compound of 本 (this) + 稿 (manuscript, draft). The kanji 稿 originally referred to a draft or manuscript, and the combination is a straightforward formal deictic expression.