The origin of R CrA variability - A complex triple system hosting a diskE. Sissa, R. Gratton, J. M. Alcalà, S. Desidera, S. Messina, D. Mesa, V. D’Orazi and E. RigliacoA&A, 630 (2019) A132DOI: https://doi.org/10.1051/0004-6361/201936101