Butcher, J. B., Verstraeten, D., Schrauwen, B., Day, C. R., & Haycock, P. W. (2013). Reservoir computing and extreme learning machines for non-linear time-series data analysis. Neural networks : the official journal of the International Neural Network Society, 38, 76-89. https://doi.org/10.1016/j.neunet.2012.11.011