%0 Journal Article %A Baumgärtel, Hellmut %T On the structure of relative identification operators for quantum fields and their connection with the Haag-Ruelle scattering theory %J Annales de l'I.H.P. Physique théorique %D 1984 %P 225-233 %V 40 %N 3 %I Gauthier-Villars %U http://www.numdam.org/item/AIHPA_1984__40_3_225_0/ %G en %F AIHPA_1984__40_3_225_0