“…First, while for strong dissipation the dynamics is characterized by only one attractor, the coexistence of a multitude of attractors for a given set of parameters is the norm for weakly dissipative systems [37]. As the conservative limit is approached, more and more coexisting attractors appear, as it has been shown for several model systems such as the standard map [37,38], the Hénon map [39,40], and in more realistic systems like a suspension bridge model [41] (see also the review in [42]). Second, of particular interest is the crossover from dissipative to conservative dynamics [43][44][45].…”