Phase-lag synchronization analysis in complex systems with directed inter-relationsV.S.G. Martins, A.C. Rodrigues, H.A. Cerdeira and B.S. MachadoEur. Phys. J. Special Topics, 225 1 (2016) 41-49DOI: https://doi.org/10.1140/epjst/e2016-02618-7