CERN Accelerating science

@techreport{Atkinson:699934,
      author        = "Atkinson, D and Kaekebeke,M and Frederiksen, J S and
                       Johnson, P W",
      title         = "{Sommerfeld-Watson representation for double-spectral
                       functions, 3: crossing symmetric pion-pion scattering
                       amplitude with Regge poles}",
      year          = "1976",
      url           = "https://cds.cern.ch/record/699934",
}