G. Bellec, D. Kappel, W. Maass, and R. Legenstein. (2017)cite arxiv:1711.05136Comment: Accepted for publication at ICLR 2018. 10 pages (12 with references, 24 with appendix), 4 Figures in the main text.
A. Popescul, L. Ungar, D. Pennock, and S. Lawrence. Proceedings of the 17th Conference on Uncertainty in Artificial Intelligence, page 437--444. San Francisco, CA, USA, Morgan Kaufmann Publishers Inc., (August 2001)