Relativity - Lecture 221026

          @misc{ pirsa_PIRSA:22100085,
            doi = {},
            url = {https://pirsa.org/22100085},
            author = {},
            keywords = {},
            language = {en},
            title = {Relativity - Lecture 221026},
            publisher = {Perimeter Institute},
            year = {2022},
            month = {oct},
            note = {PIRSA:22100085 see, \url{https://pirsa.org}}
          }