Detection of synchronization for non-phase-coherent and non-stationary data M. C. Romano, M. Thiel, J. Kurths, I. Z. Kiss and J. L. Hudson Europhys. Lett., 71 3 (2005) 466-472 Published online: 06 July 2005 DOI: 10.1209/epl/i2005-10095-1