The Instability of the Rhombus-Like Central Configurations in Newton 9-Body Problem. - D. M. Diarova; N. I. Zemtsova (CASC, 2006)

Properties of the Liapunov Stability Zones of the Lagrange Triangle. - Evgenii A. Grebenikov; Dorota Kozak-Skoworodkin; N. I. Zemtsova (CASC, 2007)