Loren, Robert B. (March 15, 1989). “The cobwebs of Ophiuchus. I - Strands of (C-13)O - The mass distribution”. Astrophysical Journal, Part 1338: 902–924. Bibcode: 1989ApJ...338..902L. doi:10.1086/167244.
Wilking, B. A.; Lada, C. J. (November 15, 1983). “The discovery of new embedded sources in the centrally condensed core of the Rho Ophiuchi dark cloud - The formation of a bound cluster”. Astrophysical Journal, Part 1274: 698–716. Bibcode: 1983ApJ...274..698W. doi:10.1086/161482.
Loren, Robert B. (March 15, 1989). “The cobwebs of Ophiuchus. I - Strands of (C-13)O - The mass distribution”. Astrophysical Journal, Part 1338: 902–924. Bibcode: 1989ApJ...338..902L. doi:10.1086/167244.
Wilking, B. A.; Lada, C. J. (November 15, 1983). “The discovery of new embedded sources in the centrally condensed core of the Rho Ophiuchi dark cloud - The formation of a bound cluster”. Astrophysical Journal, Part 1274: 698–716. Bibcode: 1983ApJ...274..698W. doi:10.1086/161482.