Overzier, R.A., Nesvadba, N.P.H., Dijkstra, M., Hatch, N.A., Lehnert, M.D., Villar-Martín, M., Wilman, R.J., Zirm, A.W., "Resolving the Optical Emission Lines of Ly$$ Blob ``B1'' at z = 2.38: Another Hidden Quasar", Astrophysical Journal, 2013