@misc{ enwiki:1227758218, author = "{Wikipedia contributors}", title = "Gliese 581e --- {Wikipedia}{,} The Free Encyclopedia", year = "2024", url = "https://en.wikipedia.org/w/index.php?title=Gliese_581e&oldid=1227758218", note = "[Online; accessed 24-July-2024]" }
url
(\usepackage{url}
somewhere in the preamble), which tends to give much more nicely formatted web addresses, the following may be preferred:
@misc{ enwiki:1227758218, author = "{Wikipedia contributors}", title = "Gliese 581e --- {Wikipedia}{,} The Free Encyclopedia", year = "2024", howpublished = "\url{https://en.wikipedia.org/w/index.php?title=Gliese_581e&oldid=1227758218}", note = "[Online; accessed 24-July-2024]" }