1. Bockelee-Morvan, D., Crovisier, J., and Gerard, E., Astron. Astrophys., 1990, vol. 238, p. 382.
2. Crovisier, J., Colom, P., Gerard, E., et al., Astron. Astrophys., 2002, vol. 393, p. 1053.
3. Crovisier, J., Biver, N., Bockelee-Morvan, D., et al., Planetary Space Sci., 2009, vol. 57, no. 10, p. 1162.
4. Dello Russo, N., Vervack, R.J., Weaver, H.A., et al., Astrophys. J., 2008, vol. 680, p. 793.
5. Despois, D., Gerard, E., Crovisier, I., et al., Astron. Astrophys., 1981, vol. 99, p. 320.