@article{MZM_2009_86_1_a0,
     author = {A. V. Bolsinov and K. M. Zuev},
     title = {A {Formal} {Frobenius} {Theorem} and {Argument} {Shift}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {3--13},
     publisher = {mathdoc},
     volume = {86},
     number = {1},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2009_86_1_a0/}
}