Solar wind Alfvénicity during solar cycle 23 and 24 - Perspective for future observations with Parker Solar Probe and Solar OrbiterR. D’Amicis, K. Alielden, D. Perrone, R. Bruno, D. Telloni, J. M. Raines, S. T. Lepri and L. ZhaoA&A, 654 (2021) A111DOI: https://doi.org/10.1051/0004-6361/202140600
