Top and W radiative corrections and the Higgs Mass

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I'm trying to understand the attached plot giving limits on the Higgs Mass based on radiative corrections to the Top and W mass. I know the general idea that both mass corrections depend on the Higgs mass, therefore knowing the mass of the two particles limits the range of the Higgs mass, but I'm looking for references that might offer a deeper understanding of the math/physics involved. Any help would be greatly appreciated.
 

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