@article{TMF_1996_109_1_a8,
     author = {G. A. Chechelashvili and G. P. Jorjadze and N. A. Kiknadze},
     title = {Practical scheme of reduction to gauge-invariant variables},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {90--106},
     publisher = {mathdoc},
     volume = {109},
     number = {1},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1996_109_1_a8/}
}