High cadence, linear, and circular polarization monitoring of OJ 287 - Helical magnetic field in a bent jetI. Myserlis, S. Komossa, E. Angelakis, J. L. Gómez, V. Karamanavis, T. P. Krichbaum, U. Bach and D. GrupeA&A, 619 (2018) A88DOI: https://doi.org/10.1051/0004-6361/201732273
