@article{10_5817_AM2014_5_297,
     author = {Jany\v{s}ka, Josef},
     title = {Hidden symmetries of the gravitational contact structure of the classical phase space of general relativistic test particle},
     journal = {Archivum mathematicum},
     pages = {297--316},
     publisher = {mathdoc},
     volume = {50},
     number = {5},
     year = {2014},
     doi = {10.5817/AM2014-5-297},
     mrnumber = {3303779},
     zbl = {06487014},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.5817/AM2014-5-297/}
}