Thronson, Harley A., Jr.; et al, Near-infrared image of NGC 1068 - Bar-driven star formation and the circumnuclear composition, Astrophysical Journal, Part 1, August 1, 1989, 343: 158–168, Bibcode:1989ApJ...343..158T, doi:10.1086/167693.
Thronson, Harley A., Jr.; et al, Near-infrared image of NGC 1068 - Bar-driven star formation and the circumnuclear composition, Astrophysical Journal, Part 1, August 1, 1989, 343: 158–168, Bibcode:1989ApJ...343..158T, doi:10.1086/167693.