The publication of "yuri" magazines had the effect of nurturing a ""yuri" culture" that influenced artists to create works depicting female same-sex relationships. Further, articles in these magazines contributed to the history of the genre by retroactively labeling certain works as "yuri", thus developing "a historical canon of the "yuri" genre." Specifically, Verena Maser notes in her analysis of issues of "Yuri Shimai", "Comic Yurihime", and "Comic Yurihime S" published from 2003 to 2012 that eight of the ten most-referenced series in the magazines predate the 2003 formalization of "yuri" as a publishing genre: "Apurōzu - Kassai" (1981–1985), "Sakura no Sono" (1985–1986), "Sailor Moon" (1992–1996), "Cardcaptor Sakura" (1996–2000), "Revolutionary Girl Utena" (1997–1999), "Maria-sama ga Miteru" (1998–2012), "Loveless" (2002–present), and "Strawberry Marshmallow" (2002–present).