S. F. Foerster
= S. F. Foerster
{c}
<S. F. Foerster> and collaborators measured sphere–sphere and sphere–wall impacts to test a collision model with normal <coefficient of restitution>, <friction> and tangential <coefficient of restitution>. Their comparison linked material-dependent measurements to predicted impact dynamics.<Measurements of the collision properties of small spheres by S. F. Foerster and others>[Abstract and reported sphere properties]{ref}