Facchini, A. Max Planck Institute for the Physics of Complex Systems, Max Planck Society;
Kantz, H. Max Planck Institute for the Physics of Complex Systems, Max Planck Society;
Facchini, A., Kantz, H., & Tiezzi, E. (2005). Recurrence plot analysis of nonstationary data: The understanding of curved patterns. Physical Review E, 72(2): 021915.