Bifurcations of two coupled classical spin oscillators
  Two classical, damped and driven spin oscillators with an isotropic exchange interaction are considered. They represent a nontrivial physical system whose equations of motion are shown to allow for an analytic treatment of local codimension 1 and 2 bifurcations. In addition, numerical results are presented which exhibit a Feigenbaum route to chaos. 
B.Rumpf and H.Sauermann (Theoretische Festk\"orperphysik, Technische   Hochschule Darmstadt, Hochschulstra{\ss}e 8, D-64289 ...