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Dey, L, Valtonen, MJ, Gopakumar, A, Zola, S, Hudec, R, Pihajoki, P, Ciprini, S, Matsumoto, K, Sadakane, K, Kidger, M, Nilsson, K, Mikkola, S, Sillanpaa, A, Takalo, LO, Lehto, HJ, Berdyugin, A, Piirola, V, Jermak, HE, Baliyan, KS, Pursimo, T et al, Caton, DB, Alicavus, F, Baransky, A, Blay, P, Boumis, P, Boyd, D, Campas Torrent, M, Campos, F, Carrillo Gomez, J, Chandra, S, Chavushyan, V, Dalessio, J, Debski, B, Drozdz, M, Er, H, Erdem, A, Escartin Perez, A, Ramazani, VF, Filippenko, AV, Gafton, E, Ganesh, S, Garcia, F, Gazeas, K, Godunova, V, Gomez Pinilla, F, Gopinathan, M, Haislip, JB, Harmanen, J, Hurst, G, Janik, J, Jelinek, M, Joshi, A, Kagitani, M, Karjalainen, R, Kaur, N, Keel, WC, Kouprianov, VV, Kundera, T, Kurowski, S, Kvammen, A, LaCluyze, AP, Lee, BC, Liakos, A, Lindfors, E, Lozano de Haro, J, Mugrauer, M, Naves Nogues, R, Neely, AW, Nelson, RH, Ogloza, W, Okano, S, Pajdosz-Smierciak, U, Pandey, JC, Perri, M, Poyner, G, Provencal, J, Raj, A, Reichart, DE, Reinthal, R, Reynolds, T, Saario, J, Sadegi, S, Sakanoi, T, Salto Gonzalez, J-L, Sameer, , Schweyer, T, Simon, A, Siwak, M, Soldan Alfaro, FC, Sonbas, E, Steele, IA, Stocke, JT, Strobl, J, Tomov, T, Tremosa Espasa, L, Valdes, JR, Valero Perez, J, Verrecchia, F, Vasylenko, V, Webb, JR, Yoneda, M, Zejmo, M, Zheng, W and Zielinski, P (2018) Authenticating the Presence of a Relativistic Massive Black Hole Binary in OJ 287 Using Its General Relativity Centenary Flare: Improved Orbital Parameters. Astrophysical Journal, 866 (1). ISSN 0004-637X