M. V. Vliet

On the unusual activity of the Perseid meteor shower (1989-96) and the dust trail of comet 109P/Swift-Tuttle

H. Betlem, P. Jenniskens, E. Morales, 1998 .

Characterization of Aerial Spray Nozzles with Laser Light-Scattering and Imaging Probes and Flash Photography

Jjc Picot, Mw van Vliet, Nicholas J. Payne, 1990 .