%0 Journal Article %A Brenier, Yann %T A modified least action principle allowing mass concentrations for the early universe reconstruction problem %J Confluentes Mathematici %D 2011 %P 361-385 %V 3 %N 3 %I World Scientific Publishing Co Pte Ltd %U http://archive.numdam.org/articles/10.1142/S1793744211000400/ %R 10.1142/S1793744211000400 %G en %F CML_2011__3_3_361_0