GRB 180904A: BOOTES-2/TELMA early observations. Perez, C. ; Castellon, A. ; Carrasco, I. ; Hu, Y. -D. ; Fernandez-Garcia, E. ; Tello, J. C. ; Ayala, A. ; Castro-Tirado, A. J. ; Jelinek, M. Abstract Publication: GRB Coordinates Network Pub Date: 2018 Bibcode: 2018GCN.23209....1P