Number of papers published per year up to 1994. The search machine used was ISI Web of Science using Topic=(“nonlinear dynamics" OR chaos). Up to 1994 the total number of entries found was 8 400 (shown in this figure). Up to 2008 the total number of entries is 39 180 and only in 2008 over 2 700 papers were published within the topics nonlinear dynamics or chaos.
