@article{TMF_1989_80_3_a1,
     author = {I. Yu. Krivsky and V. M. Simulik},
     title = {Noether analysis of~zilch conservation laws and their generalization for the electromagnetic field.
},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {340--352},
     publisher = {mathdoc},
     volume = {80},
     number = {3},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1989_80_3_a1/}
}