@article{Bergmeir2018, author = {Bergmeir, C. and Hyndman, R.J. and Koo, B.}, title= {A note on the validity of cross-validation for evaluating autoregressive time series prediction}, year = {2018}, doi = {10.1016/j.csda.2017.11.003}, volume = {120}, pages = {70--83}, }