@article{TMF_2023_216_3_a9,
     author = {A. A. Grib and Yu. V. Pavlov},
     title = {Can the energy of particles be negative in the absence of external fields?},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {504--518},
     publisher = {mathdoc},
     volume = {216},
     number = {3},
     year = {2023},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2023_216_3_a9/}
}