Sheldon mentions "professional women using their initials so as not to be prejudged", and names J.K. Rowling and Star Trek's D.C. Fontana as examples. Dorothy Fontana was a very prolific writer on several Star Trek series, but when she began writing for Star Trek (1966), creator Gene Roddenberry indeed advised her to submit screenplays using her initials "D.C.", as networks and studio executives in the 1960s were generally very biased against women writing science-fiction. The real Fontana had actually made a cameo appearance in The Russian Rocket Reaction (2011). Harry Potter author Joanne Rowling was asked by her publisher to use initials, out of fear that the target audience of young boys might be put off by books written by a woman. Even in later years, when Fontana and Rowling became well-known and established writers, they often kept using their better-known initials rather than their full name.
In The Justice League Recombination (2010), Sheldon said that Amy didn't believe in wearing costumes. Apparently, she has changed her mind since, because in The Beta Test Initiation (2012), she dressed up like a pretzel, in The Launch Acceleration (2012) as a Star Trek medical officer, in The Holographic Excitation (2012) as Raggedy Ann, and in this episode, she dresses up in a Snow White costume.
The title refers to the guys' requirement by the university to inspire women to pursue science careers.
The girls dress up as Disney princesses. Bernadette is Cinderella, Penny is Sleeping Beauty, and Amy is Snow White.
The whiteboard in the classroom specifically states 'Dr. Leonard Hofstadter', 'Dr. Sheldon Cooper' and 'Astronaut Howard Wolowitz'. 'Astronaut' is not normally used as a title like 'Doctor', but this is of course another way for Howard to make up for his lack of a Ph.D.