@article{MZM_1985_37_4_a11,
     author = {V. R. Struletskaya and V. Yu. Subochev and A. M. Chebotarev},
     title = {A series of invariant characteristics of extremum and the logarithmic asymptotic of {Laplace} integrals},
     journal = {Matemati\v{c}eskie zametki},
     pages = {545--553},
     publisher = {mathdoc},
     volume = {37},
     number = {4},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1985_37_4_a11/}
}