{
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      "reference": "[paper](https://journals.aps.org/prx/abstract/10.1103/PhysRevX.7.031013) [code](https://github.com/varbench/methods/blob/main/scripts/Impurity/TB-DMFT_309.py)",
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      "reference": "[paper](https://journals.aps.org/prx/abstract/10.1103/PhysRevX.7.031013) [code](https://github.com/varbench/methods/blob/main/scripts/Impurity/TB-DMFT_309.py)",
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