Astrometry with MCAO: HST-GeMS proper motions in the globular cluster NGC 6681D. Massari, G. Fiorentino, A. McConnachie, A. Bellini, E. Tolstoy, P. Turri, D. Andersen, G. Bono, P. B. Stetson and J.-P. VeranA&A, 595 (2016) L2DOI: https://doi.org/10.1051/0004-6361/201629336
