Polarimetric and spectropolarimetric observations with FoReRo2: Instrument overview and standard star monitoringYanko Nikolov, Galin Borisov, Stefano Bagnulo, Plamen Nikolov, Rumen Bogdanovski and Tanyu BonevA&A, 708 (2026) A30DOI: https://doi.org/10.1051/0004-6361/202558243