1999
Minkowski Circle Packings on the Sphere.
Discret. Comput. Geom., 1999

1993
Flight in a Packing of Disks.
Discret. Comput. Geom., 1993

1990
Remarks on 5-Neighbor Packings and Coverings with Circles.
Proceedings of the Applied Geometry And Discrete Mathematics, 1990

1986
Packing of ellipses with continuously distributed area.
Discret. Math., 1986

Densest Packing of Translates of the Union of Two Circles.
Discret. Comput. Geom., 1986