The parent of the Quadrantid meteoroid stream and asteroid 2003 EH1 von Williams, I. P., Ryabova, G. O., Baturin, A. P., Chernitsov, A. M.

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The velocity of meteoroids: a historical review von Williams, I. P.

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On the ejection velocity of meteoroids from comets von Ma, Yuehua, Williams, I. P., Chen, Wenping

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The Leonid meteor shower - Why are there storms but no regular annual activity? von Williams, I P

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Observations of the Trans-Neptunian Objects 1993 SC and 1996 TL66 with the Infrared Space Observatory von Thomas, Nicolas, Eggers, S, Ip, W.-H, Lichtenberg, G, Fitzsimmons, A, Jorda, L, Keller, H. U, Williams, I. P, Hahn, G, Rauer, H

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The velocity distribution of periodic comets and the meteor shower on Mars von Ma, Yuehua, Williams, I. P., Ip, W. H., Chen, Wenping

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Sculpting the outer Edgeworth–Kuiper belt: stellar encounter followed by planetary perturbations von Melita, M.D., Larwood, J.D., Williams, I.P.

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The edge of the Kuiper belt: the Planet X scenario von Melita, M.D., Williams, I.P., Collander-Brown, Simon J., Fitzsimmons, Alan

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The Geminid meteor stream and asteroid 3200 Phaethon von Williams, I. P., Wu, Zidian

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The velocity distributions of periodic comets and stream meteoroids von Hughes, David W., Williams, Iwan P.

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Leonid meteor storms von Wu, Zidian, Williams, Iwan P.

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A study of Hilda asteroids .2. Compositional implications from optical spectroscopy von Dahlgren, M, Lagerkvist, CI, Fitzsimmons, A, Williams, IP, Gordon, M

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The ejection velocity of meteoroids from cometary nuclei deduced from observations of meteor shower outbursts von Ma, Yuehua, Williams, I.P.

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The Roche Limit von Williams, I P

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Meteoroid ejection velocities deduced from a study of the April Lyrid meteor shower von Arter, T.R., Williams, I.P.

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A spectroscopic survey of D-type asteroids von FITZSIMMONS, A, DAHLGREN, M, LAGERKVIST, C.-I, MAGNUSSON, P, WILLIAMS, I. P

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Optical observations of water in Leonid meteor trails von Pellinen-Wannberg, Asta, Murad, Edmond, Gustavsson, Björn, Brändström, Urban, Enell, Carl-Fredrik, Roth, Christopher, Williams, Iwan P., Steen, Åke

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A micrometeor component of the 1998 Leonid shower von Ma, Yuehua, He, Youwen, Williams, I. P.

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The plane of the Edgeworth–Kuiper belt von Collander-Brown, Simon J., Melita, Mario D., Williams, Iwan P., Fitzsimmons, Alan

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The evolution of bodies orbiting in the trans-Neptunian region on to intermediate-type orbits von Maran, M. D., Williams, I. P.

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