00938nam a2200253 i 450099100105011970753620020507105713.0970308s1962 ||| ||| | eng b10166452-39ule_instLE00641289ExLDip.to Fisicaita53(042)53.3.1Cutkosky, R.462657Lectures on analytic properties of the S-matrix in perturbation theory /by R.E. CutkoskyCopenaghen :NORDITA,1962142 p. :ill. ;29 cm.S-matrix theory.b1016645221-09-0627-06-02991001050119707536LE006 53(042+082.2) NOR12006000035095le006-E0.00-l- 00000.i1020291227-06-02Lectures on analytic properties of the S-matrix in perturbation theory188139UNISALENTOle00601-01-97ma -engxx 01