@article{TMF_2015_183_2_a2,
     author = {M. M. Goncharovskiy and I. V. Shirokov},
     title = {Differential invariants and operators of invariant differentiation of the~projectable action of {Lie} groups},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {202--221},
     year = {2015},
     volume = {183},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2015_183_2_a2/}
}