@article{ASNSP_2007_5_6_3_441_0,
     author = {Valdimarsson, Stef\'an Ingi},
     title = {On the hessian of the optimal transport potential},
     journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze},
     pages = {441--456},
     publisher = {Scuola Normale Superiore, Pisa},
     volume = {Ser. 5, 6},
     number = {3},
     year = {2007},
     mrnumber = {2370268},
     zbl = {1170.49038},
     language = {en},
     url = {http://archive.numdam.org/item/ASNSP_2007_5_6_3_441_0/}
}