%0 Journal Article %A Widmayer, Klaus %T Non-uniqueness of weak solutions to the wave map problem %J Annales de l'I.H.P. Analyse non linéaire %D 2015 %P 519-532 %V 32 %N 3 %I Elsevier %U http://www.numdam.org/articles/10.1016/j.anihpc.2014.02.001/ %R 10.1016/j.anihpc.2014.02.001 %G en %F AIHPC_2015__32_3_519_0