New research on effect of gender bias on minority women in STEM by Joan C. Williams, UC Hastings College of the Law, Katherine W. Phillips, Columbia Business School, and Erika V. Hall, Emory University.
Report available here: http://www.uchastings.edu/news/articles/2015/01/double-jeopardy-report.pdf
Article: https://hbr.org/2015/03/the-5-biases-pushing-women-out-of-stem