QBism and Wigner's friend

          @misc{ scivideos_PIRSA:18040088,
            doi = {10.48660/18040088},
            url = {https://pirsa.org/18040088},
            author = {Schack, Ruediger},
            keywords = {},
            language = {en},
            title = {QBism and Wigner{\textquoteright}s friend},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2018},
            month = {apr},
            note = {PIRSA:18040088 see, \url{https://scivideos.org/pirsa/18040088}}
          }