Dynamics of quiescent prominence fine structures analyzed by 2D non-LTE modelling of the Hα line S. Gunár, P. Mein, B. Schmieder, P. Heinzel and N. Mein A&A, 543 (2012) A93 Published online: 03 July 2012 DOI: 10.1051/0004-6361/201218940