Coarse-graining of Spin Foams - 1

          @misc{ pirsa_PIRSA:17060077,
            doi = {10.48660/17060077},
            url = {https://pirsa.org/17060077},
            author = {Bahr, Benjamin and Dittrich, Bianca},
            keywords = {Quantum Gravity},
            language = {en},
            title = {Coarse-graining of Spin Foams - 1},
            publisher = {Perimeter Institute},
            year = {2017},
            month = {jun},
            note = {PIRSA:17060077 see, \url{https://pirsa.org}}
          }