Surname, A. (Year, date). Title. Name of the blog. URL
Hagfeldt, A. (2022, March 14). Why we must strengthen our research on democracy and peace. The vice-chancellor's blog. https://rektor.blogg.uu.se/en/2022/03/14/why-we-must-strengthen-our-research-on-democracy-and-peace/
... (Surname, Year).
This an example sentence (Hagfeldt, 2022).
Narrative citations (when the author is mentioned in the text)
Hagfeldt (2022) mentions...