SRoll2: an improved mapmaking approach to reduce large-scale systematic effects in the Planck High Frequency Instrument legacy mapsJ.-M. Delouis, L. Pagano, S. Mottet, J.-L. Puget and L. VibertA&A, 629 (2019) A38DOI: https://doi.org/10.1051/0004-6361/201834882