Brown, J. M., Rosenfeld, K. A., Andrews, S. M., Wilner, D. J., & Van Dishoeck, E. F. (2012). Matryoshka holes: nested emission rings in the transitional disk Oph IRS 48. The Astrophysical Journal Letters, 758(2):. doi:10.1088/2041-8205/758/2/L30.