Watson, W. D. (1973). "The Rate of Formation of Interstellar Molecules by Ion-Molecule Reactions". Astrophysical Journal. 183 (2): L17. Bibcode:1973ApJ...183L..17W. doi:10.1086/181242.
Jean-Pierre Maillard; Pierre Drossart; J. K. G. Watson; S. J. Kim; J. Caldwell (1990). "H + 3 Fundamental Band in Jupiter's Auroral Zones at High Resolution from 2400 to 2900 Inverse Centimeters". Astrophys. J. 363: L37. Bibcode:1990ApJ...363L..37M. doi:10.1086/185859.
Watson, W. D. (1973). "The Rate of Formation of Interstellar Molecules by Ion-Molecule Reactions". Astrophysical Journal. 183 (2): L17. Bibcode:1973ApJ...183L..17W. doi:10.1086/181242.
Jean-Pierre Maillard; Pierre Drossart; J. K. G. Watson; S. J. Kim; J. Caldwell (1990). "H + 3 Fundamental Band in Jupiter's Auroral Zones at High Resolution from 2400 to 2900 Inverse Centimeters". Astrophys. J. 363: L37. Bibcode:1990ApJ...363L..37M. doi:10.1086/185859.