2015, Amanda K. Allen, "Social Networking, Participatory Culture and the Fandom World", in Medieval Afterlives in Contemporary Culture (ed. Gail Ashton), page 279:
Popular pairings include Drarry (Draco/Harry), Snarry (Snape/Harry), Harmony (Harry/Hermione) and Wolfstar (Remus/Sirius).
2016, Alena Brunner, "Harry Potter Fans: An Anthropological Study on Identity, Practice and the Appropriation of the Fan Object Harry Potter", thesis submitted to the University of Vienna, page 110:
The official statement by Rowling contradicts and delegitimizes the popular ship of WolfStar.
2016, Jaquelin Elliott, "Becoming The Monster: Queer Monstrosity and the Reclamation of the Werewolf in Slash Fandom", Revenant, Issue 2 (2016), page 99:
Remus’ lycanthropy almost always features in Wolfstar fics precisely because it is his lycanthropy that brands his sexuality as disallowable.
2016, Olivia Riley, "Queerness and Emotion in Fanfiction", thesis submitted to the University of Minnesota, page 10:
The largest ships in this fandom are “Drarry” (the hero Harry Potter and the antagonist Draco Malfoy) and “Wolfstar” (Sirius Black and Remus Lupin, two characters from Harry’s parent’s generation).
2018, Kasandra Arthur, "We Are Having All Kinds of Fun: Fluidity in Shoebox Project", thesis submitted to the University of Waterloo, page 142:
The continued enthusiasm demonstrated here alludes to the power SBP has within HP fandom: as Emmie describes it, SBP is “the cornerstone of the Wolfstar fandom” (“Shoebox Project”).
2018, Emily E. Roach, "Polyjuice and Potterheads: The Changing Face of Fandom from LiveJournal to Tumblr", in Fan Phenomena: Harry Potter, unnumbered page:
Silveredglass, a reader and writer who primarily ships Drarry and Remus Lupin/Sirius Black or 'Wolfstar', found Harry Potter fandom through Tumblr.
2019, Beatriz Brito do Nascimento, "No heteros in this heterotopia: Harry Potter slash fanfiction as heterotopian space", dissertation submitted to the University of Porto, page 66:
That tragic backstory, combined with the physical and emotional toll of Remus being a werewolf, makes a good case for Wolfstar being one of the angstier ships in the fandom.
2021, Grace Perry, The 2000s Made Me Gay: Essays on Pop Culture, unnumbered page:
But the biggest slash ships online are Drarry (Draco and Harry) and WolfStar (Sirius Black and Remus Lupin).
Stories focused on Wolfstar, the relationship between Remus and Sirius, fall into both those categories—not least since queerness was largely excluded from Rowling’s version of the Harry Potter universe.