Kinematic study of planetary nebulae in NGC 6822 S. N. Flores-Durán, M. Peña, L. Hernández-Martínez, J. García-Rojas and M. T. Ruiz A&A, 568 (2014) A82 Published online: 22 August 2014 DOI: 10.1051/0004-6361/201322002