Construction of covariant vertex operators in the pure spinor formalism

          @misc{ scivideos_SAIFR:2270,
            doi = {},
            url = {https://youtu.be/W56qxOnEuRI?t=6438},
            author = {},
            keywords = {ICTP-SAIFR, IFT, UNESP},
            language = {en},
            title = {Construction of covariant vertex operators in the pure spinor formalism},
            publisher = { ICTP South American Institute for Fundamental Research},
            year = {2020},
            month = {jun},
            note = {SAIFR:2270 see, \url{https://scivideos.org/ictp-saifr/2270}}
          }