@article{TMF_2018_195_2_a8,
     author = {I. Y. Park},
     title = {Four-dimensional covariance of {Feynman} diagrams in {Einstein} gravity},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {288--312},
     publisher = {mathdoc},
     volume = {195},
     number = {2},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2018_195_2_a8/}
}