2013, Kristina Busse, "Pon Farr, Mpreg, Bonds, and the Rise of the Omegaverse", in Fic: Why Fanfiction Is Taking Over the World (ed. Anne Jamison), page 317:
Many A/B/O stories posit societies where biological imperatives divide people based on wolf pack hierarchies into sexual dominants (alphas), sexual submissives (omegas), and everyone else (betas).
2017, Elliot Aaron Director, "Something Queer in His Make-Up: Genderbending, Omegaverses, and Fandom's Discontents," dissertation submitted to Bowling Green State University, page 177:
[…] ("E" says that A/B/O fics help mitigate some of their own struggles around "gender bullshit").
2017, Marianne Gunderson, "What is an omega? Rewriting sex and gender in omegaverse fanfiction", thesis submitted to the University of Oslo, page 103:
It also harnesses the a/b/o trope to increase the stakes of intimacy and trust in the context of sexual encounters, and to intensify descriptions of desire and sexual pleasure.
2018, Laura Campillo Arnaiz, "When the Omega Empath Met the Alpha Doctor: An Analysis of Alpha/Beta/Omega Dynamics in the Hannibal Fandom", in The Darker Side of Slash Fan Fiction (ed. Ashton Spacey), page 120:
As is the case with primates, the human protagonists of traditional A/B/O stories can never be equals, and their roles can never be interchanged.
2018, Milena Popova, "'Dogfuck rapeworld': Omegaverse fanfiction as a critical tool in analyzing the impact of social power structures on intimate relationships and sexual consent", Porn Studies, Volume 5, Issue 2 (2018):
The first stories recognized as A/B/O emerged in mid-2010 and what began as another trope has evolved into a genre and gained popularity across a number of large fandoms, including Supernatural, Teen Wolf, and Sherlock.