%0 Journal Article %A Janyška, Josef %T Hidden symmetries of the gravitational contact structure of the classical phase space of general relativistic test particle %J Archivum mathematicum %D 2014 %P 297-316 %V 50 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.5817/AM2014-5-297/ %R 10.5817/AM2014-5-297 %G en %F 10_5817_AM2014_5_297