You have to specify the reasons why you are working on the summary of the article and what you are going to achieve. One of the options is to prepare a review, which can be taken again later to remember the content of the article; then, the summary is not supposed to be brief and you will include more details in it. On the other hand, if you need to include the summary of the article in the research paper, you will have to make it concise and logical. See a detailed guideline
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