Perturbed distribution functions with accurate action estimates for the Galactic disc H. Al Kazwini, Q. Agobert, A. Siebert, B. Famaey, G. Monari, S. Rozier, P. Ramos, R. Ibata, S. Gausland, C. Rivière and D. Spolyar A&A, 658 (2022) A50 Published online: 01 February 2022 DOI: 10.1051/0004-6361/202040118