A precise measurement of the magnetic field in the corona of the black hole binary V404 Cygni by Dallilar, Y, Eikenberry, SS, Garner, A, Stelter, RD, Gottlieb, A, Gandhi, P, Casella, P, Dhillon, VS, Marsh, TR, Littlefair, SP, Hardy, L, Fender, R, Mooley, K, Walton, DJ, Fuerst, F, Bachetti, M, Castro-Tirado, AJ, Charcos, M, Edwards, ML, Lasso-Cabrera, NM, Marin-Franch, A, Raines, SN, Ackley, K, Bennett, JG, Cenarro, AJ, Chinn, B, Donoso, HV, Frommeyer, R, Hanna, K, Herlevich, MD, Julian, J, Miller, P, Mullin, S, Murphey, CH, Packham, C, Varosi, F, Vega, C, Warner, C, Ramaprakash, AN, Burse, M, Punnadi, S, Chordia, P, Gerarts, A, De Paz Martín, H, Calero, MM, Scarpa, R, Acosta, SF, Sánchez, WM, Siegel, B, Pérez, FF, Martín, HD, Losada, JA, Nuñez, A, Tejero, Á, González, CE, Rodríguez, CC, Molgó, J, Rodriguez, JE, Cáceres, JIF, LA Rodríguez García, Lopez, MH, Dominguez, R, Gaggstatter, T, Lavers, AC, Geier, S, Pessev, P, Sarajedini, A