@misc{ enwiki:1207326800, author = "{Wikipedia contributors}", title = "Reuven Ramaty High Energy Solar Spectroscopic Imager --- {Wikipedia}{,} The Free Encyclopedia", year = "2024", url = "https://en.wikipedia.org/w/index.php?title=Reuven_Ramaty_High_Energy_Solar_Spectroscopic_Imager&oldid=1207326800", note = "[Online; accessed 30-June-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:1207326800, author = "{Wikipedia contributors}", title = "Reuven Ramaty High Energy Solar Spectroscopic Imager --- {Wikipedia}{,} The Free Encyclopedia", year = "2024", howpublished = "\url{https://en.wikipedia.org/w/index.php?title=Reuven_Ramaty_High_Energy_Solar_Spectroscopic_Imager&oldid=1207326800}", note = "[Online; accessed 30-June-2024]" }