Analyticity properties of superstring loop amplitudes

          @misc{ scivideos_strings:20191030,
            doi = {},
            url = {https://www.youtube.com/watch?v=a5BBmoKt-Go},
            author = {},
            keywords = {},
            language = {en},
            title = {Analyticity properties of superstring loop amplitudes},
            publisher = {},
            year = {},
            month = {},
            note = {strings:20191030 see, \url{https://scivideos.org/strings-conferences/20191030}}
          }