@article{TMF_1995_102_1_a12,
     author = {S. V. Sushkov},
     title = {Vacuum polarization of a~complex automorphic scalar field in two-dimensional spacetime with closed null geodesics and the time-machine problem},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {134--149},
     year = {1995},
     volume = {102},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1995_102_1_a12/}
}