Physics in Nature Presentation: Estimating the Speed of a Swimming Duck

          @misc{ pirsa_PIRSA:11080104,
            doi = {},
            url = {https://pirsa.org/11080104},
            author = {Gustafsson, Henrik},
            keywords = {},
            language = {en},
            title = {Physics in Nature Presentation: Estimating the Speed of a Swimming Duck},
            publisher = {Perimeter Institute},
            year = {2011},
            month = {aug},
            note = {PIRSA:11080104 see, \url{https://pirsa.org}}
          }