Existence, uniqueness and statistical theory of turbulent solutions of the stochastic Navier-Stokes equation, in three dimensions -- an overview. Birnir, Björn — 2010 Banach Journal of Mathematical Analysis [electronic only]
The local ill-posedness of the modified KdV equation Björn Birnir; Gustavo Ponce; Nils Svanstedt — 1996 Annales de l'I.H.P. Analyse non linéaire