This is a thesis from 2012.
According to the abstract, the author interviewed adult men with Aspergers about their “perceptions of masculinity, gender-typed behaviours, relationships, and societal influences.”
She found that “for participants, identifying with male gender provides a platform for fitting in by allowing them to learn from societal stereotypes and rehearse playing ‘male’ roles. Participants displayed ambivalence in their feelings of being drawn to the perceived safety of females but resenting the ‘feminine’ side of themselves.”
Based on her study and the literature on gender identity, she makes recommendations for professionals and parents of children with Aspergers about potential gender identity confusion.
Unfortunately, I am not able to read it online. Perhaps someone else can find out what the author is recommending for parents!