TTP13-021 Analytic results for planar three-loop four-point integrals from a Knizhnik-Zamolodchikov equation

TTP13-021 Analytic results for planar three-loop four-point integrals from a Knizhnik-Zamolodchikov equation
J. Henn, A.V. Smirnov, V.A. Smirnov
JHEP 1307 128 2013
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