1 paper
Miguel Ayala, Carlos Barrera-Anzaldo, Luis C. GarcÃa-Naranjo
We continue the study initiated by Kilin ({\em Reg. Chaot. Dyn.} 4, (1999)) and by MartÃnez and Simó ({\em Celest. Mech. Dynam. Astronom.} 128, (2017)) on the classification and…