%0 Journal Article %A Holíková, Marie %A Křižka, Libor %A Somberg, Petr %T Projective structure, $\widetilde{\operatorname{SL}}(3,\mathbb{R})$ and the symplectic Dirac operator %J Archivum mathematicum %D 2016 %P 313-324 %V 52 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.5817/AM2016-5-313/ %R 10.5817/AM2016-5-313 %G en %F 10_5817_AM2016_5_313