Hyperbolic string vértices

          @misc{ scivideos_SAIFR:2246,
            doi = {},
            url = {https://youtu.be/soMxLek1uj0?t=8316},
            author = {},
            keywords = {ICTP-SAIFR, IFT, UNESP},
            language = {en},
            title = {Hyperbolic string v{\'e}rtices},
            publisher = { ICTP South American Institute for Fundamental Research},
            year = {2020},
            month = {jun},
            note = {SAIFR:2246 see, \url{https://scivideos.org/index.php/ictp-saifr/2246}}
          }