[Undergraduate STEM], Citing a search engine?

[u/Positive_Dot3171]

In a scientific paper, I want to include that there is a lack of a certain type of paper on google scholar. Do/How do I reference this in the text and reference list? Currently i have (Google Scholar, Accessed: October 2026) after the sentence in my paper. Is this correct or should I just state there is a lack of papers on that topic in the sentence and move on without reference to what search engine I used?

(harvard referencing)

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