If you use data from the ADHD-200 Preprocessed repository please cite our paper:
Pierre Bellec, Carlton Chu, François Chouinard-Decorte, Yassine Benhajali, Daniel S. Margulies, R. Cameron Craddock (2017). The Neuro Bureau ADHD-200 Preprocessed repository. NeuroImage, 144, Part B, pp. 275 - 286. doi:10.1016/j.neuroimage.2016.06.034
If you have a publication that used ADHD-200 preprocessed data but is not included on this list, please let us know. The reference list is also available as a Mendeley Group.