@Article{ BohBouCri14a, author = { Bohun, Anna and Bouchut, François and Crippa, Gianluca }, title = { Lagrangian solutions to the Vlasov-Poisson system with L^1 density }, journal = { Journal of Differential Equations }, year = { 2015 }, volume = { 21 }, pages = { }, URL = { http://cvgmt.sns.it/paper/2591/ }, note = { cvgmt preprint} }