@article{TMF_2016_187_3_a1,
     author = {A. E. Shabad},
     title = {Velocity addition and a~closed time cycle in {Lorentz-noninvariant} theories},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {421--432},
     publisher = {mathdoc},
     volume = {187},
     number = {3},
     year = {2016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2016_187_3_a1/}
}