Recurrence networks from multivariate signals for uncovering dynamic transitions of horizontal oil-water stratified flowsZhong-Ke Gao, Xin-Wang Zhang, Ning-De Jin, Reik V. Donner, Norbert Marwan and Jürgen KurthsEPL, 103 5 (2013) 50004DOI: https://doi.org/10.1209/0295-5075/103/50004