# Integration by parts: The algorithm to calculate β-functions in 4 loops

@article{Chetyrkin1981IntegrationBP, title={Integration by parts: The algorithm to calculate $\beta$-functions in 4 loops}, author={Konstantin G. Chetyrkin and Fyodor V. Tkachov}, journal={Nuclear Physics}, year={1981}, volume={192}, pages={159-204} }

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