@article{AA_2019_31_4_a1,
     author = {I. N. Braeutigam and D. M. Polyakov},
     title = {On the asymptotics of eigenvalues of a third-order differential operator},
     journal = {Algebra i analiz},
     pages = {16--47},
     year = {2019},
     volume = {31},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_2019_31_4_a1/}
}