@article{TMF_1989_79_3_a3,
     author = {P. M. Lavrov and I. V. Tyutin},
     title = {Symmetry generators in~singular theories},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {359--370},
     publisher = {mathdoc},
     volume = {79},
     number = {3},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1989_79_3_a3/}
}