Partial Covering of a Circle by Equal Circles. Part I: The Mechanical Models. - Zsolt Gáspár; Tibor Tarnai; Krisztián Hincz (J. Comput. Geom., 2014)

Partial Covering of a Circle by Equal Circles. Part II: The Case of 5 Circles. - Zsolt Gáspár; Tibor Tarnai; Krisztián Hincz (J. Comput. Geom., 2014)

The Roundest Polyhedra with Symmetry Constraints. - András Lengyel; Zsolt Gáspár; Tibor Tarnai (Symmetry, 2017)

Partial Covering of a Circle by 6 and 7 Congruent Circles. - Zsolt Gáspár; Tibor Tarnai; Krisztián Hincz (Symmetry, 2021)