1. The serial number of the reference cited in the paper should be placed in the upper right corner of the cited part as required, such as "Experimental Research on Analog Circuits".

2. According to the requirements, the references at the end of the paper should be in separate pages and arranged in the format of [1][2][3] according to the citation order in the paper.

3. The type of reference (i.e. citation source) is identified by a single letter.

4. Examples of periodical literature writing: the author of the literature serial number, or the title of the paper [J], the name of the publication, the year of publication, and the volume (issue): the page number of the paper in the publication is A ~ B, etc.