Analytic approach to bifurcation cascades in a class of generalized   H\'enon-Heiles potentials
  We derive stability traces of bifurcating orbits in H\'enon-Heiles potentials near their saddles 
S. N. Fedotkin (1), A. G. Magner (1), M. Brack (2) ((1) Institute for   Nuclear Research, Kiev, Ukraine, (2) Institut f\"ur ...