Funding

The research has received funding from the Israel Science Foundation - F.I.R.S.T. (Bikura) Individual Grant no. 644/08.

The research was also partially funded by the European Research Council under the European Community's Seventh Framework Programme (FP7/2007-2013)/ERC grant agreement no. 229418, and by an Early Israel grant (New Horizons project), Tel Aviv University.

Arie Shaus received funding from the Azrieli Foundation.

This study is supported by a generous donation of Mr. Jacques Chahine, made through the French Friends of Tel Aviv University.