If an article have author(s) what do you put in its place Or if it a published date?

It depends on the context and what information you want to emphasize. Here are some options for what to put in place of an author or published date in an article:

If you want to focus on the topic:

* Use a descriptive title: For example, instead of "An article by John Smith about climate change," you could say "Climate Change: A Pressing Issue."

* Use a keyword or phrase: For example, "Climate change research" or "The effects of climate change."

If you want to focus on the source:

* Use the publication name: For example, "An article from The New York Times about climate change."

* Use the website or journal name: For example, "An article from the National Geographic website about climate change."

If you want to emphasize the time period:

* Use a time range: For example, "An article published in 2023 about climate change."

* Use a specific date: For example, "An article published on January 1st, 2023 about climate change."

If you want to be brief and generic:

* Use a placeholder like "Author" or "Date".

* Use a phrase like "This article" or "The source".

Ultimately, the best choice will depend on your specific needs and the context of your writing.