@misc{ enwiki:1226200014, author = "{Wikipedia contributors}", title = "9×19mm Parabellum --- {Wikipedia}{,} The Free Encyclopedia", year = "2024", url = "https://en.wikipedia.org/w/index.php?title=9%C3%9719mm_Parabellum&oldid=1226200014", note = "[Online; accessed 1-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:1226200014, author = "{Wikipedia contributors}", title = "9×19mm Parabellum --- {Wikipedia}{,} The Free Encyclopedia", year = "2024", howpublished = "\url{https://en.wikipedia.org/w/index.php?title=9%C3%9719mm_Parabellum&oldid=1226200014}", note = "[Online; accessed 1-July-2024]" }