@article{CML_2011__3_3_361_0, author = {Brenier, Yann}, title = {A modified least action principle allowing mass concentrations for the early universe reconstruction problem}, journal = {Confluentes Mathematici}, pages = {361--385}, publisher = {World Scientific Publishing Co Pte Ltd}, volume = {3}, number = {3}, year = {2011}, doi = {10.1142/S1793744211000400}, language = {en}, url = {http://www.numdam.org/articles/10.1142/S1793744211000400/} }