%0 Journal Article %A Petkov, Veselin %A Popov, Georgi %T Asymptotic behaviour of the scattering phase for non-trapping obstacles %J Annales de l'Institut Fourier %D 1982 %P 111-149 %V 32 %N 3 %I Institut Fourier %C Grenoble %U http://www.numdam.org/articles/10.5802/aif.882/ %R 10.5802/aif.882 %G en %F AIF_1982__32_3_111_0