An Invitation to Causal Sets - Lecture 4

          @misc{ scivideos_PIRSA:10100041,
            doi = {},
            url = {https://pirsa.org/10100041},
            author = {Dowker, Fay and Sorkin, Rafael},
            keywords = {},
            language = {en},
            title = {An Invitation to Causal Sets - Lecture 4},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2010},
            month = {oct},
            note = {PIRSA:10100041 see, \url{https://scivideos.org/index.php/pirsa/10100041}}
          }