@article{ARM_2006__42_2_a10,
     author = {Jany\v{s}ka, Josef},
     title = {Geometric structures on the tangent bundle of the {Einstein} spacetime},
     journal = {Archivum mathematicum},
     pages = {195--203},
     publisher = {mathdoc},
     volume = {42},
     number = {2},
     year = {2006},
     mrnumber = {2240357},
     zbl = {1164.53318},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_2006__42_2_a10/}
}